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ГОСТ Р 55442-2013

GOST R 55442−2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С


GOST R 55442−2013


NATIONAL STANDARD OF THE RUSSIAN FEDERATION

PIPES FOR BOILER AND HEAT EXCHANGE EQUIPMENT

Technical specifications

Part 1

PIPES STEEL SEAMLESS FOR WORKING UNDER PRESSURE NOT MORE than 6,4 MPa AND AT TEMPERATURE IS ABOVE 400 ° C

Tubes for boiler and heat exchanging equipment. Specifications. Part 1. Seamless steel pipes to work pressure not more than 6.4 MPa and at temperatures not exceeding 400 ° C


GCS 77.140.75
OKP 13 1900,
13 4400,
13 5100

Date of implementation 2013−12−01



Foreword

1 was developed by the Open Joint-Stock Company «Research and Production Association» Central Research Institute of Machinery Technology «(JSC» NPO TsNIITMASH «) and PC 2» Seamless pipes «TK 357» Steel and cast iron pipes and cylinders «

2 was introduced by the Technical Committee for Standardization of TC 357 «Steel and Cast Iron Pipes and Cylinders»

3 APPROVED AND ENABLED The Order of the Federal Agency for Technical Regulation and Metrology of June 19, 2013 N 164-st

4 INTRODUCED FOR THE FIRST TIME


The rules of application of this standard are set in GOST R 1.0−2012 (section 8). The information on changes to this standard is published in the annual (as of January 1 of the current year) information index «National Standards», and the official text of the amendments and amendments is published in the monthly information index «National Standards». In case of revision (replacement) or cancellation of this standard, the relevant notice will be published in the next issue of the information index «National Standards». The relevant information, notification and texts are also posted in the public information system — on the official website of the Russian Federation’s national standardization body on the Internet (gost.ru)

Introduction


This standard has been developed in connection with the need to create a regulatory framework for pipes for boiler and heat exchange equipment and to exclude the delivery of such pipes to various standards of non-purpose, not fully meeting the requirements of the Rules for the device and safe operation of boiler and heat exchange equipment.

This standard is developed on the basis of special technical conditions TU 14−3-190−2004 «Seamless steel pipes for boiler plants and pipelines» with the addition of steels of grades 09G2S and 10G2, the manufacture of pipes from which for boiler and heat exchange equipment is stipulated by the rules of GOST 8731−74 «Pipes steel seamless hot-deformed — Technical requirements» and TU 14−3-1128−82 * «Pipes steel seamless hot-deformed for gas pipelines of gas-lift systems».
________________
* The specifications mentioned here and below are not given here. For more information, please click here. — Note of the database manufacturer.

This standard is part of a set of standards for pipes for boiler and heat exchange equipment.

Compared with the previously used documents for pipes of specified purpose, this standard clearly defines the scope of the pipes, specifies the requirements for the heat treatment of pipes, adds the ability to control the hardness of the metal pipes, tensile tests at various elevated temperatures, and impact tests at various low temperatures .

1 area of use


This standard applies to cold-deformed and hot-deformed seamless steel pipes made of carbon and low-alloy steels intended for boiler, heat exchange equipment and pipelines operating at a pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° C.

2 Normative references


Normative references to the following standards are used in this standard:

GOST R 53383−2009 Pipes, steel, seamless, hot-deformed. Technical specifications

GOST 166−89 (ISO 3599−76) Calipers. Technical specifications

GOST 1050−88 High-quality rolled products, calibrated, with special finishing of the surface of carbon quality construction steel. General specifications

Gauge smooth unregulated. Technical requirements

GOST 2216−84 Calibers-staples smooth adjustable. Technical specifications

GOST 3728−78 Pipes. Bending test method

GOST 3845−75 Pipes made of metal. Hydraulic Pressure Test Method

GOST 4543−71 Rolled from alloyed structural steel. Technical specifications

GOST 6507−90 Micrometers. Technical specifications

Measuring Tape Metal. Technical specifications

GOST 7565−81 (ISO 377−2-89) Cast iron, steel and alloys. Method of sampling for chemical composition determination

GOST 8026−92 Testing rulers. Technical specifications

GOST 8694−75 Pipes. Test method for distribution

GOST 8695−75 Pipes. Flattening test method

GOST 9012−59 (ISO 410−82, ISO 6506−81) Metals. Method for measuring Brinell hardness

GOST 9454−78 Metals. Test method for impact bending at low, ambient and elevated temperatures

GOST 10006−80 (ISO 6892−84) Metallic pipes. Tensile test method

GOST 10243−75 Steel. Methods of testing and evaluation of macrostructure

GOST 10692−80 Pipes steel, cast iron and connecting parts to them. Acceptance, marking, packaging, transportation and storage

GOST 11358−89 Thickness gauges and stokomery indicator with a division price of 0.01 and 0.1 mm. Technical specifications

GOST 12359−99 (ISO 4945−77) Carbon steels, alloyed and highly alloyed. Methods for determination of nitrogen

GOST 14810−69 Calibres-plugs are smooth, bilateral with inserts of diameter from 3 to 50 mm. Design and dimensions

GOST 17410−78 Non-destructive testing. Pipes made of metal, seamless, cylindrical. Methods of ultrasonic flaw detection

GOST 18360−93 Caliber-staples sheet for diameters from 3 to 260 mm. Dimensions

GOST 18365−93 Caliber-staples sheet with replaceable jaws for diameters from 100 to 360 mm. Dimensions

GOST 19040−81 Pipes made of metal. Tensile test at elevated temperatures

GOST 19281−89 (ISO 4950−2-81, ISO 4950−3-81, ISO 4951−79, ISO 4995−78, ISO 4996−78, ISO 5952−83) Rolled steel of increased strength. General specifications

Carbon steel and cast iron, unalloyed. General requirements for analysis methods

Carbon steel and cast iron, unalloyed. Methods for determination of total carbon and graphite

Carbon steel and cast iron, unalloyed. Methods for determination of sulfur

Carbon steel and cast iron, unalloyed. Methods for determination of phosphorus

Carbon steel and cast iron, unalloyed. Methods for determination of silicon

GOST 22536.5−87 (ISO 629−82) Carbon steel and cast iron, non-alloy. Methods for the determination of manganese

Carbon steel and cast iron, unalloyed. Methods for the determination of arsenic

Carbon steel and cast iron, unalloyed. Methods for the determination of chromium

Carbon steel and cast iron, non-alloy. Methods for determination of copper

Carbon steel and cast iron, unalloyed. Methods for the determination of nickel

Carbon steel and cast iron, unalloyed. Methods for determination of aluminum

Carbon steel and cast iron, non-alloy. Methods for determination of titanium

GOST 26877−91 Metal products. Methods for measuring the deviation of the shape

GOST 27809−95 Cast iron and steel. Methods of spectrographic analysis

GOST 28548−90 Steel pipes. Terms and Definitions

GOST 31458−2012 (ISO 10474: 1991) Steel pipes and pipe products. Documents on acceptance inspection

NOTE — When using this standard it is advisable to check the operation of reference standards in the public information system — on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or on the annual information index «National Standards», which was published as of January 1 of this year, and on the issues of the monthly information index «National Standards» for the current year. If you replace the reference standard for which an undated reference is given, then the current version of this standard is recommended, taking into account all changes made to this version. If the reference standard, to which the reference is dated, is replaced, then the version of this standard with the above approval year is recommended. If, following the approval of this standard, a reference is made to the reference standard for which the reference is dated, a change affecting the provision referred to is made, it is recommended that this provision be applied without regard to this change. If the reference standard is abolished without replacement, then the provision in which it is referenced is recommended to apply in a part that does not affect this reference.

3 Terms and definitions


In this standard terms are used in accordance with GOST 28548 and terms according to [1] * with respect to surface defects.
________________
* See Bibliography. — Note of the database manufacturer.

4 Notations and abbreviations


The following notations and abbreviations are used in this standard:

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С — outside diameter;

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С — thickness of the pipe wall;

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С — weight of 1 m of pipe;

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С — carbon equivalent;

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С, GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С, GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С, GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С — temporary resistance, yield strength, elongation and relative narrowing — the mechanical properties of the metal, determined during the tensile test;

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С — Impact toughness is the mechanical property of a metal, determined during the impact test.

5 Assortment

5.1 Types of pipes and delivery status


Pipes are made seamless hot-deformed or cold-deformed.

Pipes are supplied in a state after heat treatment.

5.2 Steel grades


Pipes are made of carbon steels of grades 10 and 20 in accordance with GOST 1050, of low-alloy steels of grades 10G2 in accordance with GOST 4543 and 09G2S according to GOST 19281.

5.3 Dimensions


Pipes are manufactured according to the outside diameter and wall thickness by the dimensions indicated for the hot-formed pipes in Table 1, for cold-formed tubes — in Table 2, the usual and increased accuracy in diameter and / or wall thickness (see tables 7 and 8).

Table 1 — Outer diameter, wall thickness and theoretical mass of 1 m GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° Сhot-deformed pipes

Outer diameter of pipes, mm Theoretical mass of 1 m of pipes, kg, with wall thickness, mm
2.5 3.0 3.5 4.0 4,5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0
25
1.39 1.63 1.86 2.07 2.28 2.47 2.65 2.81 2.97 3.11 3.24 3.35 - - - - - - - - - -
28
1.57 1.85 2.11 2.37 2.62 2.84 3.05 3.26 3.45 3.63 3.79 3.95 - - - - - - - - - -
thirty
1.70 2.00 2.29 2.57 2.83 3.08 3.32 3.55 3.77 3.97 4.16 4.34 - - - - - - - - - -
32
1.82 2.15 2.46 2.76 3.05 3.33 3.59 3.85 4.09 4.32 4.53 4.74 - - - - - - - - - -
38
2.19 2.59 2.98 3.35 3.72 4.07 4.41 4.74 5.05 5.35 5.64 5.92 - - - - - - - - - -
40
2.31 2.74 3.15 3.55 3.94 4.32 4.68 5.03 5.37 5.70 6.01 6.31 - - - - - - - - - -
42
2.44 2.89 3.32 3.75 4.16 4.56 4.95 5.33 5.69 6.04 6.38 6.71 7.32 7.89 - - - - - - - -
45
2.62 3.11 3.58 4.04 4.49 4.93 5.36 5.77 6.17 6.56 6.94 7.30 7.99 8.63 - - - - - - - -
50
2.93 3.43 4.01 4.54 5.05 5.55 6.04 6.51 6.97 7.42 7.86 8.29 9.11 9.87 - - - - - - - -
51
- 3.55 4.10 4.64 5.16 5.67 6.17 6.66 7.13 7.60 8.04 8.48 9.32 10.11 - - - - - - - -
54
- 3.77 4.36 4.93 5.49 6.04 6.58 7.10 7.61 8.11 8.60 9.08 9.99 10.85 11.67 - - - - - - -
57
- 4.00 4.62 5.23 5.83 6.41 6.99 7.55 8.10 8.63 9.16 9.67 10.65 11.59 12.48 13.32 14.11 - - - - -
60
- 4.22 4.88 5.52 6.16 6.78 7.39 7.99 8.58 9.15 9.71 10.26 11.32 12.33 13.29 14.21 15.07 15.88 - - - -
76
- 5.40 6.26 7.10 7.94 8.76 9.56 10.36 11.14 11.91 12.67 13.42 14.87 16.28 17.63 18.94 20.20 21.41 22.57 23.68 24.74 25.75
83
- - 6.86 7.79 8.71 9.62 10.51 11.39 12.26 13.12 13.96 14.80 16.43 18.00 19.53 21.01 22.44 23.82 25.16 26.44 27.67 28.85
89
- - 7.38 8.39 9.38 10.36 11.33 12.28 13.23 14.16 15.07 15.98 17.76 19.48 21.16 22.70 24.37 25.90 27.37 28.81 30.19 31.52
102
- - 8.50 9.67 10.82 11.96 13.09 14.21 15.31 16.40 17.48 18.55 20.64 22.69 24.69 26.63 28.53 30.38 32.18 33.93 35.64 37.29
108
- - - 10.26 11.49 12.70 13.90 15.09 16.27 17.44 18.59 19.73 21.97 24.17 26.31 28.41 30.46 32.46 34.40 36.30 38.15 39.95
114
- - - 10.85 12.15 13.44 14.72 15.98 17.23 18.47 19.70 20.91 23.31 25.65 27.94 30.19 32.38 34.53 36.62 38.67 40.67 42.62
121
- - - 11.54 12.93 14.30 15.67 17.02 18.35 19.68 20.99 22.29 24.86 27.37 29.84 32.26 34.62 36.94 39.21 41.63 43.60 45.72
133
- - - 12.73 14.26 15.73 17.29 13.79 20.23 21.75 23.21 24.66 27.52 30.33 33.10 35.81 38.47 41.09 43.65 46.17 43.63 51.05
140
- - - - 15.04 16.65 18.24 19.83 21.40 22.96 24.51 26.04 29.08 32.06 35.00 37.88 40.72 43.50 46.24 48.93 51.57 54.16
146
- - - - 15.70 17.39 19.06 20.72 22.36 24.00 25.62 27.23 30.41 33.54 36.62 39.66 42.64 45.57 48.46 51.30 54.08 56,82
152
- - - - 16.37 18.13 19.87 21.60 23.32 25.03 26.73 28.41 31,74 35.02 38.25 41.43 44.56 47.65 50.68 53.66 56.60 59.48
159
- - - - 17.15 18.99 20.82 22.64 24.45 26.24 28.02 29.79 33.29 36.75 40.15 43.50 46.81 50.06 53.27 56.43 59.53 62.59
168
- - - - - 20.10 22.04 23.97 25.89 27.79 29.69 31.57 35.29 38.97 42.59 46.17 49.69 53.17 56.60 59.98 63.31 66.59
194
- - - - - 23.31 25.57 27.82 30.06 32.28 34.50 36.70 41.06 45.38 49.64 53.86 58.03 62.15 66.22 70.24 74.21 78.13
203
- - - - - - - 29.15 31.50 33.84 36.16 38.47 43.06 47.60 52.09 56.52 60.91 65.25 69.55 73.79 77.98 82.12
219
- - - - - - - 31.52 34.06 36.60 39.12 41.63 46.61 51.54 56.43 61.26 66.04 70.78 75.46 80.10 84.69 89.23
245
- - - - - - - - 38.23 41.09 43.93 46.76 52.38 57.95 63.48 68.95 74.38 79.76 85.08 90.36 95.59 100.77
273
- - - - - - - - 42.72 45.92 49.11 52.28 58.60 64.86 71.07 77.24 83.36 89,42 95.44 101.41 107.33 113.20
299
- - - - - - - - - - 53.92 57.41 64.37 71.27 78.13 84.93 91.69 98.40 105.06 111.67 118.23 124.74
325
- - - - - - - - - - 53.73 62.54 70.14 77.68 85.18 92.63 100.03 107.38 114.68 121.93 129.13 136.28
351
- - - - - - - - - - - 67.67 75.91 84.10 92.23 100.32 108.36 116.35 124.29 132.19 140.03 147.82
377
- - - - - - - - - - - - 81.68 90.51 99.29 108.02 116.70 125.33 133.91 142.45 150.93 159.36
426
- - - - - - - - - - - - 92.56 102.59 112.68 122.62 132.41 142.25 152.04 161.78 171.47 181.11

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СThe theoretical mass of 1 m of the pipe is given for reference.

NOTE The theoretical mass of 1 m of pipes in kilograms is calculated by the following formula:

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С(1)



Table 2 — Outer diameter, wall thickness and theoretical mass of 1 m GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° Сcold-formed pipes

Outer diameter of pipes, mm
Theoretical mass of 1 m of pipes, kg, with wall thickness, mm


0.3
0.4
0.5
0.6
0.8
1.0
1.2
1.4
1.5
1.6
1.8
2.0
2.2
2.5
2.8
3.0
3.2
3.5
5
0.035
0.045
0.056
0.065
0.083
0.099
0.112
0.124
0.129
-
-
-
-
-
-
-
-
-
6th
0.042
0.055
0.068
0.080
0.103
0.123
0.142
0.159
0.166
0.174
0.186
0.197
-
-
-
-
-
-
7th
0.050
0.065
0.030
0.095
0.122
0.148
0.172
0.193
0.203
0.213
0.231
0.247
0.260
0.277
-
-
-
-
8
0.057
0.075
0.093
0.110
0.142
0.173
0.201
0.228
0.240
0.253
0.275
0.296
0.315
0.339
-
-
-
-
9
0.064
0.085
0.105
0.124
0.162
0.197
0.231
0.262
0.277
0.292
0.320
0.345
0.369
0.401
-
-
-
-
10
0.072
0.095
0.117
0.139
0,182
0.222
0.26
0.297
0.314
0.332
0.364
0.395
0,426
0,462
0.497
0.513
0.537
0.561
eleven
0.079
0.105
0.129
0.154
0.201
0.247
0.29
0.331
0.351
0.371
0.408
0.444
0,477
0.524
0.566
0.592
0.616
0.647
12
0.087
0,114
0.142
0.169
0.221
0.271
0.32
0.366
0.388
0.410
0.453
0.493
0.532
0.586
0.635
0.666
0.694
0,734
13
0.094
0.124
0.154
0,184
0.241
0.296
0.349
0.401
0.425
0.450
0.497
0.543
0.586
0.647
0.704
0,740
0.773
0,820
14
0.101
0.134
0.166
0,198
0.260
0,321
0.379
0.435
0,462
0.489
0.542
0.592
0.640
0.709
0.773
0.314
0.852
0.906
15
0.109
0.144
0.179
0.213
0.280
0.345
0.408
0.470
0,499
0.529
0.586
0.641
0.694
0.771
0.842
0.888
0.931
0.993
16
0.116
0.154
0.191
0.228
0.300
0.370
0.438
0.504
0.536
0.568
0.630
0.691
0,749
0,832
0.911
0.962
1.010
1.079
17th
0.124
0.164
0.203
0.243
0.32
0.395
0.468
0.539
0.573
0.608
0.675
0,740
0.803
0.894
0.981
1,036
1.089
1,165
18
0.131
0.174
0.216
0.258
0.339
0.419
0.497
0.573
0.610
0.647
0.719
0,739
0.857
0.956
1.050
1.110
1,168
1,252
19
0.138
0.183
0.228
0.272
0.359
0.444
0.527
0.608
0.647
0.687
0,764
0,838
0.911
1,017
1,119
1.184
1.247
1.338
20
0.146
0.193
0.240
0.287
0.379
0.469
0.556
0.642
0.684
0,726
0.308
0,838
0.966
1.079
1,188
1,258
1,326
1.424
21
-
0.203
0.253
0.302
0.399
0.493
0.536
0.677
0.721
0,765
0.352
0.937
1.020
1.141
1,257
1,332
1.405
1,511
22
-
0.213
0.265
0.317
0.418
0.518
0.616
0,711
0.758
0.305
0.397
0.936
1,074
1,202
1,326
1.406
1.448
1.597
23
-
0.223
0.277
0.331
0.438
0.543
0.645
0.774
0.795
0.344
0.941
1,036
1,129
1,264
1.395
1.480
1.563
1.683
24
-
0.233
0.290
0.346
0.458
0.567
0.675
0.780
0,832
0.384
0.985
1.035
1.183
1,326
1,464
1.554
1,641
1,769
25
-
0.243
0.302
0.361
0,477
0.592
0.704
0.815
0.869
0,923
1.030
1.134
1.237
1.387
1.533
1.628
1,720
1.856
26th
-
0.253
0.314
0.376
0.497
0.617
0,734
0.849
0.906
0.963
1,074
1.184
1.291
1.449
1,602
1,702
1,800
1.942
27th
-
0.262
0.327
0.391
0.517
0.641
0,764
0.884
0.943
1,002
1,119
1.233
1.346
1.346
1,671
1,776
1,878
2,028



Continuation of Table 2

Outer diameter of pipes, mm
Theoretical mass of 1 m of pipes, kg, with wall thickness, mm


4.0
4,5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
11.0
12.0
14.0
16.0
18.0
5
- - - - - - - - - - - - - - - - - -
6th
- - - - - - - - - - - - - - - - - -
7th
- - - - - - - - - - - - - - - - - -
8
- - - - - - - - - - - - - - - - - -
9
- - - - - - - - - - - - - - - - - -
10
- - - - - - - - - - - - - - - - - -
eleven
- - - - - - - - - - - - - - - - - -
12
- - - - - - - - - - - - - - - - - -
13
0.888
- - - - - - - - - - - - - - - - -
14
0.986
- - - - - - - - - - - - - - - - -
15
1.085
- - - - - - - - - - - - - - - - -
16
1.184
1.276
1.356
- - - - - - - - - - - - - - -
17th
1.282
1.387
1.480
- - - - - - - - - - - - - - -
18
1.381
1,498
1,603
- - - - - - - - - - - - - - -
19
1.480
1,609
1,726
- - - - - - - - - - - - - - -
20
1.578
1,720
1,850
1,967
2,072
-
-
-
-
-
-
-
-
-
-
-
-
-
21
1,677
1,831
1,973
2,102
2.220
-
-
-
-
-
-
-
-
-
-
-
-
-
22
1,776
1.942
2.096
2.238
2,368
-
-
-
-
-
-
-
-
-
-
-
-
-
23
1,874
2,053
2.220
2.374
2,515
-
-
-
-
-
-
-
-
-
-
-
-
-
24
1,973
2,164
2.343
2.509
2.663
2.805
-
-
-
-
-
-
-
-
-
-
-
-
25
2,072
2.275
2,466
2,645
2,811
2,965
3.107
-
-
-
-
-
-
-
-
-
-
-
26th
2,170
2.386
2.589
2.781
2.959
3.125
3,280
-
-
-
-
-
-
-
-
-
-
-
27th
2,269
2,497
2,713
2,916
3.107
3,286
3.453
-
-
-
-
-
-
-
-
-
-
-



Continuation of Table 2

Outer diameter of pipes, mm
Theoretical mass of 1 m of pipes, kg, with wall thickness, mm


0.3
0.4
0.5
0.6
0.8
1.0
1.2
1.4
1.5
1.6
1.8
2.0
2.2
2.5
2.8
3.0
3.2
3.5
28
-
0.272
0.339
0.405
0.537
0.666
0.793
0.918
0.980
1,042
1,163
1,232
1,400
1,400
1,740
1,850
1.957
2,115
thirty
-
0.292
0.364
0.435
0.576
0,715
0.852
0.987
1.054
1,121
1,252
1.331
1,508
1,508
1,878
1,998
2,115
2,287
32
-
0.312
0.388
0.465
0.616
0,764
0.911
1.056
1,128
1,200
1.341
1,430
1,617
1,617
2.016
2.146
2.273
2,460
34
-
0.331
0.413
0.494
0.655
0,814
0.971
1,126
1,202
1.278
1.429
1.578
1,725
1,725
2,154
2,294
2,430
2,633
35
-
0.341
0.425
0.509
0.675
0,838
1,000
1,160
1.239
1,318
1.474
1.628
1,780
1,780
2.223
2,367
2,510
2,719
36
-
0.351
0.438
0.524
0.694
0.863
1.030
1.195
1.276
1.357
1.518
1,677
1,834
1,834
2,293
2.441
2,588
2.805
38
-
0.371
0,462
0.553
0,734
0,912
1.039
1,264
1,350
1.436
1,607
1,776
1.942
1.942
2,431
2.589
2.746
2,978
40
-
0.391
0.487
0.583
0.773
0.962
1,148
1.333
1.424
1,515
1.696
1,874
2,051
2,051
2,569
2,737
2.904
3.150
42
- - - - - 1,011
1,207
1.402
1,498
1.594
1,785
1,973
2,159
2,435
2.707
2,885
3,062
3.323
45
- - - - - 1.085
1.296
1,505
1,609
1,712
1,918
2,121
2.322
2,620
2,914
3.107
3,299
3,582
48
- - - - - 1.159
1.385
1,609
1,720
1,831
2,051
2,269
2,435
2.805
3,121
3.329
3.535
3.841
50
- - - - - 1,208
1,444
1,678
1,794
1,910
2,140
2,368
2,594
2,929
3,259
3,477
3,693
4.014
51
- - - - - 1.233
1.474
1,712
1,831
1,949
2,184
2,417
2.648
2,990
3.328
3,551
3.772
4,100
53
- - - - - 1.282
1.533
1.782
1.905
2,028
2.273
2,515
2,756
3,114
3,466
3,699
3.930
4,273
54
- - - - - 1,307
1.563
1,816
1.942
2.068
2,317
2,565
2,810
3.175
3.535
3.773
4.009
4,359
56
- - - - - 1.356
1.622
1,885
2.016
2,147
2.406
2.663
2,919
3,298
3,674
3,921
4.167
4,532
57
- - - - - 1.381
1,651
1,920
2,053
2,186
2,450
2,713
2,973
3,360
3.743
3.995
4,246
4,618
60
- - - - - 1,455
1,740
2,023
2,164
2,304
2,584
2.861
3.136
3,545
3,950
4,217
4,482
4,877
63
- - - - - 1.529
1,829
2,127
2.275
2,423
2,717
3.009
3,499
3,730
4,157
4,439
4,719
5,136
65
- - - - - 1.578
1,833
2,196
2.349
2.502
2.806
3.107
3.407
3.853
4,295
4,587
4,877
5,308
68
- - - - - 1,652
1,977
2,299
2,460
2,620
2,939
3,255
3,570
4,033
4.502
4.809
5,113
5,567
70
- - - - - 1,702
2,036
2,368
2,534
2,699
3,027
3.354
3,673
4.162
4,640
4,957
5,271
5,740
73
- - - - - 1,776
2.125
2,472
2,645
2,817
3.161
3.502
3.841
4.347
4.847
5.179
5.508
5,999
75
- - - - - 1,825
2,184
2.541
2,719
2.896
3,249
3,601
3.930
4,470
4,986
5.327
5,666
6,172
76
- - - - - 1,850
2,214
2,576
2,756
2,936
3,294
3,650
4.004
4,532
5,055
5,401
5,745
6,258



Continuation of Table 2

Outer diameter of pipes, mm
Theoretical mass of 1 m of pipes, kg, with wall thickness, mm
4.0
4,5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
11.0
12.0
14.0
16.0
18.0
28
2,368
2,608
2,836
3,052
3,255
3.446
3,625
-
-
-
-
-
-
-
-
-
-
-
thirty
2,565
2,830
3.083
3.323
3,551
3.767
3.971
4.162
4.34
-
-
-
-
-
-
-
-
-
32
2.762
3,052
3.329
3,594
3.847
4,087
4,316
4,531
4,735
-
-
-
-
-
-
-
-
-
34
2.959
3,274
3,576
3.366
4.143
4,408
4,661
4,901
5,129
-
-
-
-
-
-
-
-
-
35
3.058
3.385
3,699
4.001
4,291
4,568
4,834
5,086
5.327
-
-
-
-
-
-
-
-
-
36
3.157
3,496
3,822
4,137
4,439
4,728
5,006
5,271
5,524
-
-
-
-
-
-
-
-
-
38
3.354
3,718
4,069
4,408
4,735
5,049
5.352
5,641
5,919
6,184
6.437
-
-
-
-
-
-
-
40
3,551
3,940
4,316
4,680
5,031
5.369
5,697
6,011
6,313
6,603
6,881
-
-
-
-
-
-
-
42
3,749
4.162
4,562
4,951
5.327
5,690
6,042
6.381
6,708
7,023
7,324
-
-
-
-
-
-
-
45
4,044
4,495
4,932
5,353
5,771
6.171
6,560
6,936
7,300
7,651
7,990
8,317
8,632
-
-
-
-
-
48
4,340
4,327
5,302
5,765
6,215
6,652
7,078
7,491
7,892
8,280
8,656
9,020
9.371
-
-
-
-
-
50
4.533
5,049
5.549
6,036
6,511
6,972
7,423
7,861
8,286
8,699
9,110
9.489
9.865
10.580
11.246
-
-
-
51
4,636
5,160
5,672
6,172
6.659
7.132
7.596
8.046
8,484
8.909
9.322
9,723
10,111
10,851
11,542
-
-
-
53
4,834
5.382
5,919
6,443
6,955
7,453
7.941
8,416
8.378
9.328
9.766
10,191
10,604
11,394
12,133
-
-
-
54
4,932
5.493
6,042
6,573
7,103
7,613
8,114
8,601
9.075
9.538
9,988
10,426
10,851
11,665
12,429
-
-
-
56
5,130
5,715
6,289
6,850
7,398
7,934
8.459
8,971
9.470
9.957
10,432
10.394
11,345
12,207
13,021
-
-
-
57
5,228
5,826
6,412
6,985
7,546
8,095
8,632
9,156
9,667
10,167
10,654
11,128
11.591
12,479
13,317
-
-
-
60
5,524
6.159
6,782
7,392
7,990
8,575
9.149
9,710
10.259
10,796
11.32
11.331
12,331
13.293
14,205
-
-
-
63
5,820
6,492
7,152
7,799
8,434
9,056
9,667
10.265
10,851
11,424
11,985
12,534
13,070
14,106
15,093
-
-
-
65
6,017
6,714
7,398
8,070
8.730
9.377
10.013
10,635
11.246
11,844
12,429
13,003
13.564
14,649
15.685
-
-
-
68
6,313
7,047
7.768
3,477
9.174
9.857
10,530
11,190
11.838
12,473
13,095
13.706
14.304
15,463
16,573
-
-
-
70
6,511
7,269
8.015
3,749
9.470
10.178
10.876
11.560
12,232
12,892
13,539
14.174
14,797
16,005
17,164
-
-
-
73
6,807
7.602
8.385
9,156
9,914
10.659
11,394
12,115
12.824
13.521
14,205
14,877
15,537
16.819
18,052
-
-
-
75
7.004
7,324
8,631
9.427
10,210
10,930
11,739
12,485
13,219
13,940
14,649
15,345
16,030
17,362
18,644
-
-
-
76
7,103
7,935
8.755
9.562
10.358
11,140
11,911
12,670
13,416
14,150
14.871
15,580
16,276
17,633
18,940
-
-
-



Continuation of Table 2

Outer diameter of pipes, mm
Theoretical mass of 1 m of pipes, kg, with wall thickness, mm
0.3
0.4
0.5
0.6
0.8
1.0
1.2
1.4
1.5
1.6
1.8
2.0
2.2
2.5
2.8
3.0
3.2
3.5
80
- - - - - - 2.331
2,714
2.904
3.094
3,471
3.847
4,221
4,778
5.331
5,697
6,060
6,603
83
- - - - - - 2,420
2,817
3.015
3,212
3.605
3.995
4.383
4,963
5,538
5,919
6,298
6,862
85
- - - - - - 2,430
2,886
3,089
3.291
3,693
4,094
4,492
5,086
5,676
6,067
6,455
7,035
89
- - - - - - 2,593
3,024
3.237
3.449
3.871
4,291
4.709
5.353
5,952
6,363
6,771
7,380
90
- - - - - - 2,623
3.059
3,274
3,488
3,915
4,340
4.763
5,395
6,021
6.437
6,850
7,466
95
- - - - - - 2.776
3,232
3.459
3.685
4,137
4,587
5,034
5,703
6.367
6,867
7,244
7,898
100
- - - - - - - - 3,644
3.883
4,359
4,834
5,306
6,011
6,712
7.176
7,639
8.329
102
- - - - - - - - 3,718
3.962
4,448
4,933
5,414
6,135
6,850
7,324
7,797
8.502
103
- - - - - - - - 3,940
4,198
4,714
5,223
5,740
6,504
7.264
7.768
8,270
9,020
110
- - - - - - - - 4.014
4,277
4.803
5.327
5,849
6,623
7,402
7.916
9.428
9.193
120
- - - - - - - - 4,384
4,672
5,247
5,820
6.391
7,244
8,093
8,656
9,217
10,056
130
- - - - - - - - 4.754
5,066
5,691
6,313
6,934
7,861
8.783
9.396
10,007
10,919
140
- - - - - - - - - 5,461
5,135
6,807
7,476
8,477
9,474
10,136
10,796
11,782
150
- - - - - - - - - - 6,579
7,300
8.019
9.094
10,164
10.876
11,584
12,645
160
- - - - - - - - - - - 7,793
8,561
9,710
10,855
11,616
12,374
13.508
170
- - - - - - - - - - - 8,286
9,104
10.327
11,546
12.355
13,163
14,371
180
- - - - - - - - - - - 8.779
9.647
10,944
12,236
13,095
13,952
15,235
190
- - - - - - - - - - - - - - 12,927
13.835
14,742
16,098
200
- - - - - - - - - - - - - - - 14,575
15,531
16,961
210
- - - - - - - - - - - - - - - 15,315
16,320
17,824
220
- - - - - - - - - - - - - - - 16,055
17,109
18,687
240
- - - - - - - - - - - - - - - - - -
250
- - - - - - - - - - - - - - - - - -



End of Table 2

Outer diameter of pipes, mm
Theoretical mass of 1 m of pipes, kg, with wall thickness, mm
4.0
4,5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
11.0
12.0
14.0
16.0
18.0
80
7,497
8.379
9.248
10,105
10.95
11,731
12.602
13,410
14,205
14,988
15.759
16,517
17,263
18,718
20,124
-
-
-
83
7,793
8,712
9.618
10,512
11,394
12,263
13,120
13,965
14,797
15,617
16,425
17,220
18,003
19,532
21,012
-
-
-
85
7,990
8,934
9.865
10.783
11,690
12.584
13,465
14,334
15,191
16,036
16,868
17,688
18,496
20,074
21.603
-
-
-
89
8.385
9.378
10.358
11,326
12,281
13,225
14,156
15.074
15,981
16,375
17,756
18,626
19,483
21,160
22.787
-
-
-
90
8,484
9.489
10,481
11,461
12,429
13.385
14,328
15.259
16,178
17,084
17,978
18,360
19,729
21,431
23,083
-
-
-
95
8,977
10.043
11,098
12,140
13,169
14,187
15,191
16,184
17,164
18,132
19,088
20,031
20,962
22.787
24,563
-
-
-
100
9.470
10.598
11,714
12.818
13,909
14,938
16,055
17,109
18,151
19,180
20,198
21,203
22,192
24,144
26,043
29,692
33.145
36,400
102
9,667
10,820
11,961
13,089
14,205
15,308
16,400
17,479
18,545
19,600
20,642
21,671
22,689
24,686
26,634
30,383
33,934
37,288
103
10.259
11,486
12,701
13.903
15,093
16,269
17,436
18,589
19,729
20.357
21,973
23,077
24,168
26,314
28,410
32,455
36,302
39,952
110
10.456
11.708
12,947
14.174
15,389
16,590
17,781
18.959
20,124
21,277
22,417
23,546
24,662
26,856
29,002
33.145
37,091
40,839
120
11,443
12.818
14,180
15,531
16,868
18,193
19.507
20.308
22,097
23,373
24,637
25,388
27,128
29.569
31,961
36,598
41,037
45,278
130
12,429
13,928
15,413
16,887
18,348
19,796
21,233
22,658
24,070
25,469
26,856
28,231
29.504
32,282
34,921
40,050
44,983
49,718
140
13,416
15,037
16,646
18,243
19,828
21,400
22,960
24.507
26,043
27,565
29.076
30,574
32,060
34,995
37,880
43.503
48,928
54,157
150
14,402
16.147
17,880
19,600
21,308
23,003
24,686
26,357
28,016
29,662
31,295
32,917
34,526
37,707
40,839
46,955
52,874
58,596
160
15,389
17,257
19,113
20,956
22.787
24.606
26,412
28,207
29,988
31,758
33.515
35,260
36,992
40,420
43,799
50,408
56,820
63,035
170
16,375
18.367
20,346
22,312
24,267
26,209
28,139
30,056
31,961
33,854
35,733
37.603
39,458
43,133
46,758
53,861
60,766
67,174
180
17,362
19,476
21,579
23,669
25,747
27,812
29,865
31.906
33,934
35,950
37,954
39,945
41,925
45,346
49,713
57,313
64,712
74,913
190
18,348
20.586
22,812
25,025
27,226
29,415
31,591
33,755
35.907
38,046
40.174
42,288
44,391
48,558
52,677
60,766
68,658
76,352
200
19,335
21,696
24,045
26,332
23,706
31,013
33,313
35,605
37,880
40.143
42,393
44,631
46,857
51,271
55,636
64,218
72.603
80.791
210
20,321
22.806
25,278
27,733
30,136
32,621
35,044
37,455
39,853
42,239
44,613
46,974
49,323
53,984
58,596
67,671
76,549
85,230
220
21,308
23,915
26,511
29,094
31,665
34,224
36,770
39,304
41,826
44,335
46,832
49,317
51,789
56,697
61,555
71,124
80,495
89,669
240
-
26,135
28,977
31,307
34,625
37,430
40,223
43,003
45,772
48,528
51,271
54,002
56,721
62,122
67,474
78,029
88,387
98,547
250
-
27,244
30,210
33,164
36,104
39,033
41,949
44,353
47,744
50,624
53,491
56,345
59,183
64,335
70,433
31,431
92,333
102,986

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СThe theoretical mass of 1 m of the pipe is given for reference.

NOTE The theoretical mass of 1 m of pipes in kilograms is calculated by the formula (1).



As agreed between the manufacturer and the customer, the pipes may be manufactured in intermediate dimensions not provided for in tables 1 and 2.

As agreed between the manufacturer and the customer, hot-deformed pipes may be manufactured in accordance with GOST R 53383, more than specified in this standard.

Upon agreement between the manufacturer and the customer, the pipes are manufactured according to the internal diameter and wall thickness, along the outer and inner diameters.

5.4 Length


The length of the pipe produced:

a) Uneven length — in the range from 4,0 to 12,5 mm;

b) dimensional length — within an unlimited length;

c) length, multiple dimensional, — within an unlimited length with an allowance for each cut of 5 mm, if the other allowance is not specified in the order.

As agreed between the manufacturer and the customer, the pipes of a measured length and length, multiple dimensional, may be manufactured in length not provided for in this standard.

5.5 Examples of pipe designation


Conditional symbols for the pipes are formed in accordance with the following examples.

Examples

1 Pipes cold-deformed (X), external diameter 32 mm of usual accuracy, with a wall thickness of 4.5 mm of usual accuracy, measuring length 5000 mm, of steel grade 20, according to GOST R 55442−2013 :

Pipe — X — 32 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С4,5 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С5000 — 20 — GOST R 55442−2013

2 Pipes hot-deformed (D), external diameter 168 mm high accuracy, with wall thickness 10.0 mm of increased accuracy, length, multiple of 1500 mm, of steel grade 20, according to GOST R 55442−2013 :

Pipe — G — 168n GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С10n GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С1500кр — 20 — GOST R 55442−2013

3 Pipes cold-deformed (X), external diameter 32 mm high accuracy, with a wall thickness of 4.5 mm of usual accuracy, measuring length 6000 mm, of steel grade 09G2S, according to GOST R 55442−2013 :

Pipe — X — 32n GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С4,5 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С6000 — 09G2S — GOST R 55442−2013

4 Pipes cold-deformed (X), internal diameter 32 mm of usual accuracy, with a wall thickness of 3.5 mm of usual accuracy, unlimited length, of steel grade 10G2, according to GOST R 55442−2013 :

Pipe — X — вн32 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С3,5 — 10Г2 — GOST R 55442−2013

5 Pipes cold-deformed (X), external diameter 36 mm of usual accuracy, internal diameter 32 mm of usual accuracy, measuring length 5000 mm, of steel grade 20, according to GOST R 55442−2013 :

Pipe — X — 36 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° Свн32 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С5000 — 20 — GOST R 55442−2013

5.6 Information specified in the order

5.6.1 When ordering pipes manufactured in accordance with this standard, the customer must specify the following mandatory information in the order:

a) the designation of this standard;

b) type of pipes: hot-deformed or cold-deformed (see 5.1);

c) steel grade (see 5.2);

d) the dimensions of the pipes;

e) accuracy of manufacture (see 5.3, 6.6.1);

e) the length of the pipes (see 5.4);

g) non-destructive testing method (see 6.8.2).

5.6.2 If necessary, the customer may specify the following additional requirements in the order:

a) manufacture of pipes of length, multiple of the dimensional, with allowance on the cut, not provided for in this standard (see 5.4);

b) manufacture of pipes made of steel with a limitation in the chemical composition of the mass fraction of sulfur and phosphorus (see 6.2.2);

c) type of technological test for pipes with an outside diameter of less than 108 mm, with a wall thickness of not more than 9 mm (see 6.5.1);

d) a test for flattening pipes up to 60 mm in diameter, with a wall thickness of not more than 15% of the outer diameter (see 6.5.2);

e) supply of pipes with a wall thickness of at least 5.0 mm with an external chamfer (see 6.9.2);

f) supply of pipes with an external diameter of 108 mm or less, with safety details at the ends of the pipes (see 6.10.3);

g) control of the chemical composition of the metal pipes (see 8.3, table 10);

i) execution of an acceptance inspection document not provided for in this standard (see 8.5).

5.6.3. If necessary, the following additional requirements may be agreed upon between the manufacturer and the customer:

a) manufacture of pipes with intermediate dimensions not provided for in tables 1 and 2 (see 5.3);

b) the manufacture of pipes with dimensions in excess of those specified in this standard, in accordance with GOST R 53383 (see 5.3);

c) manufacture of pipes for internal diameter and wall thickness (see 5.3, 6.6.1);

d) manufacture of pipes for external and internal diameters (see 5.3, 6.6.1);

e) manufacture of pipes of dimensional length and length, multiple dimensional, not provided for by this standard (see 5.4);

f) the manufacture of pipes with the normalization of the yield stress of the metal pipes at a temperature of 350 ° C (see 6.3.2);

g) the manufacture of pipes with the normalization of the yield strength of the metal pipes at a temperature of 400 ° C and the harmonization of the norm (see 6.3.2);

i) manufacture of pipes with a wall thickness of 12.0 mm or more, with the normalization of the toughness of the metal pipes at one or several temperatures: minus 20 ° C, minus 40 ° C or minus 60 ° C (see 6.3.2);

j) manufacture of pipes with a wall thickness of more than 10.0 mm, with a normalization of the hardness of the pipe metal (see 6.3.2);

l) manufacture of pipes with other extreme deviations in external, internal diameters and wall thickness of pipes (see 6.6.1);

m) manufacture of pipes of dimensional length and length, multiple dimensional, with reduced or increased length deviations (see 6.6.2);

n) the manufacture of pipes with the normalization of general straightness and the harmonization of the norm (see 6.6.4);

n) applying a temporary conservation coating (see 6.10.4);

p) packing of pipes in materials with volatile corrosion inhibitors (see 6.10.5);

c) the supply of pipes with additional markings (see 6.10.6);

t) supply of pipes in a special package (see 6.10.7);

y) control of wall thickness along the whole length of the pipe by ultrasonic method (see 8.3, table 10);

f) the dimensions of the longitudinal rectangular risks for non-destructive testing of tubes with a wall thickness of less than 2.0 mm or an internal diameter of 10 mm or less (see 9.13, table 12).

6 Technical requirements

6.1 Method of production

6.1.1 For the production of pipes, a rolled, forged or continuous casting should be used. It is allowed to use ingots smelted using electroslag remelting.

6.1.2 Pipes shall be seamless and made by hot or cold deformation.

6.1.3 The pipes shall be normalized at the temperature specified in Table 3. The normalization of hot-formed pipes from rolling heating at the end-of-rolling temperature not lower than 890 ° C is allowed.


Table 3 — Normalization temperature

Normalization temperature, ° С (± 10 ° С)
at normal heating
at high-speed heating
900−950
900−1050



Allowed for normalization, accelerated fan cooling or spray cooling.

The post-normalization of high-temperature tempering is allowed.

6.2 Chemical composition

6.2.1 The chemical composition of steel grades 10 and 20 shall comply with GOST 1050, steel grade 10G2 — GOST 4543, steel grade 09G2S — GOST 19281.

6.2.2 At the request of the customer, the pipes are made of steel with a limitation in the chemical composition of the mass fraction: sulfur — no more than 0.020%, phosphorus — not more than 0.025%.

6.2.3. The value of the carbon equivalent GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° Сfor steel grades 10Г2 and 09Г2С, calculated by the following formula, should not exceed 0.43%:

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, (2)


Where GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С — Mass fraction of carbon and manganese,%.

6.3 Mechanical properties

6.3.1 The mechanical properties of the pipe metal at room temperature shall be as specified in Table 4.


Table 4 — Mechanical properties of metal pipes at room temperature

steel grade

Temporary resistance GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, N / mm GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

Yield strength GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, N / mm GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

Relative extension GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° СGOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С,%

Relative contraction GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С,%

Impact strength GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° СGOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С, J / cm GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

not less than
10
353−550 215 24 55 40
20
410−590 245 21 45 40
10G2
Not less than 421 265 21 50 40
09G2S
Not less than 470 265 21 50 40

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° СWhen determining the mechanical properties on samples in the form of a segment or a section of a pipe of full cross section, a reduction in the relative elongation by three units from the established norm is allowed, the relative narrowing is not normalized.

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СThe impact strength is normalized for pipes with a wall thickness of 12.0 mm or more.

6.3.2. As agreed between the manufacturer and the customer, the pipes are manufactured with one or more additional requirements for the mechanical properties specified in Table 5.


Table 5 — Additional requirements for the mechanical properties of metal pipes

steel grade

Yield strength GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, N / mm GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, at a temperature

Impact strength GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° СGOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С, J / cm GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, at a temperature

Brinell hardness GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, HB

350 ° С 400 ° С minus 20 ° С minus 40 ° С minus 60 ° С
not less than no more
10 130

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С

25

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

137
20 160 25 156
10G2 180 25 197
09G2S 180 25 197

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° СImpact strength is normalized for pipes with a wall thickness of 12.0 mm or more.

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° СThe hardness is normalized for pipes with a wall thickness of more than 10.0 mm.

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СThe norm is established by agreement between the manufacturer and the customer.

6.4 Macro structure


In the macrostructure of metal pipes with a wall thickness of 12.0 mm or more, cracks, unwound plaque, subcortical gas bubbles, crusts, stratifications, floccents, foreign metallic and nonmetallic inclusions visible without the use of magnifying devices are not allowed.

The manufacturer can guarantee the compliance of the macrostructure of the pipe metal with the specified requirements without monitoring on the basis of the pipe production technology.

6.5 Technological properties

6.5.1 Pipes, depending on the external diameter and wall thickness, must withstand one of the technological tests specified in Table 6.

If two possible types of tests are indicated in Table 6 for the ordered outer diameter and wall thickness of the pipes, the required type of test is indicated by the customer, and in the absence of such indication, the manufacturer chooses.


Table 6 — Types of technological testing of pipes

Outside diameter, mm Wall thickness, mm
Types of testing
Up to 60 inclusive. Up to 9 inclusive.
Bend or Hand
More than 9 Bend
60 to 108 inclusive Up to 9 inclusive. Distribution or flattening
More than 9, but not more than 15% of the outer diameter
Flattening
More than 9 and more than 15% of the outer diameter Bend
108 to 273 inclusive. Not more than 15% of the outer diameter
Flattening
More than 15% of the outer diameter Bend
St. 273 Any
Bend

6.5.2 On request of the customer, pipes with an outside diameter of up to 60 mm inclusive, with a wall thickness of not more than 15% of the outer diameter, shall withstand a flattening test.

6.6 Limit deviations of diameter, wall thickness, length and shape deflection

6.6.1. The limiting deviations of the outer diameter and wall thickness shall not exceed the limit deviations specified in Tables 7 and 8.


Table 7 — Limit deviations of the dimensions of hot-deformed pipes

Pipe size, mm Limit deviations at accuracy of manufacturing
ordinary increased
Outer diameter
Up to 50 inclusive.
± 0.5 mm -
Holy 50 to 95 inclusive ± 1.00% ± 0.75%
(but not less than ± 0,5 mm)
95 to 140 inclusive.
± 1.00% ± 0.80%
140 to 245 inclusive.
± 1.00% ± 0.90%
Holy 245 to 299 inclusive
± 1.25% ± 0.90%
St. 299
± 1.25% ± 1.00%
Wall thicknesses
 — outer diameter up to 108 inclusive, with wall thickness:
Up to 7.0 inclusive.
+ 12.5%
-15.0%
± 12.5%
Holy 7.0 to 15.0 inclusive
+ 12.5%
-15.0%
+ 10.0%
-12.5%
St. 15.0
± 12.5% ± 10.0%
 — Outer diameter exceeding 108 to 299 inclusive, with wall thickness:
All
+ 12.5%
-15.0%
± 12.5%
 — outer diameter over 299, with wall thickness:
Up to 15.0 inclusive.
+ 12.5%
-15.0%
-
St. 15.0
± 12.5% -



Table 8 — Limit deviations in the dimensions of cold-deformed pipes

Pipe size, mm Limit deviations at accuracy of manufacturing
ordinary increased
Outer diameter
Up to 10 inclusive. ± 0.15 mm
-
Holy 10 to 30 inclusive ± 0.30 mm
-
30 to 50 inclusive ± 0.40 mm
± 0.60%
(but not less than ± 0.25 mm)
Holy 50 to 12 * inclusive. ± 0.80%
St. 120 ± 0.80%
± 0.75%
Wall thicknesses
Up to 1.0 inclusive ± 0.12 mm
-
St 1.0 to 5.0 inclusive ± 10.00%
-
St. 5.0 ± 8.00%
-

________________
* The text of the document corresponds to the original. — Note of the database manufacturer.

The maximum deviation of the internal diameter of the pipes shall not exceed the limit deviations established for an equal external diameter in Tables 7 and 8.

Upon agreement between the manufacturer and the customer, other limit deviations in the outer and inner diameters and the wall thickness of the pipes may be established.

6.6.2 Limit deviations of the length of pipes of a dimensional length and length, multiple of a dimensional, shall not exceed the values indicated in Table 9.


Table 9 — Limit deviations of pipe length

In millimeters

Pipe length Limit deviations with outer diameter
up to 168 inclusive. St. 168
Up to 6.0 inclusive
10 +15
Holy 6.0 to 12.0 inclusive
+15 +15
St. 12.0
+25 +25



As agreed between the manufacturer and the customer, the pipes of a measured length and length, a multiple of the dimensional, are manufactured with reduced or increased length deviations.

6.6.3 Ovality and variability should not lead to the diameter and thickness of the pipe wall beyond the allowed values for a given manufacturing accuracy.

6.6.4 The deviation of pipes from straightness in any section of 1 m length shall not exceed:

— for pipes with an outer diameter of up to and including 10 mm — 2.0 mm;

— for pipes with an outer diameter exceeding 10 mm — 1.5 mm.

If the manufacturer and the customer agree on the manufacture of pipes with the dimensions of POGOST P 53383, more than those specified in this standard, the deviation of the pipes from straightness in any section of 1 m length shall be as specified in GOST R 53383.

The requirements for the overall straightness of the pipes can be agreed between the manufacturer and the customer.

6.7 Surface quality

6.7.1. On the outer and inner surfaces of pipes, imperfections are not permissible that lead to a diameter or wall thickness beyond the permissible values, as well as the following defects: cracks, foils, flaws, sunsets.

6.7.2 It is allowed to remove imperfections and defects by continuous abrasive grinding, grinding, polishing, boring or turning, provided that they do not lead to a diameter and wall thickness beyond the permissible values.

It is allowed to remove imperfections and defects by local abrasive stripping, provided that it does not display the wall thickness beyond the permissible values. Plots of local mopping should smoothly pass into the adjacent surface of the pipe.

Repair of the surface of pipes by welding is not allowed.

6.7.3 On the surface of the pipes, certain imperfections are allowed: dents, risks, ruffles, other imperfections due to the production method, and traces of stripping, if they do not lead to a wall thickness beyond the permissible values.

On the surface of the pipes, traces of exfoliated scale and process grease are allowed, not interfering with surface quality control.

6.8. The solidity of the metal

6.8.1. The pipes shall withstand the hydrostatic test pressure, calculated according to the formula given in GOST 3845, with an allowable voltage in the pipe wall equal to 40% of the minimum value of the temporary resistance for the specified steel grade, but not exceeding 20 MPa.

The manufacturer can guarantee the ability of the pipes to withstand the test hydrostatic pressure without testing. The ability of pipes to withstand the test hydrostatic pressure is provided by the technology of pipe production.

6.8.2 Pipes shall undergo nondestructive testing by one of the following methods: ultrasonic, magnetic or eddy current — specified in the order.

6.9 Finishing of pipe ends

6.9.1 The ends of the pipes shall be cut at a right angle and stripped of burrs. When removing burrs, chamfers are allowed.

6.9.2 At the request of the customer at the ends of pipes with a wall thickness of 5.0 mm or more, an external chamfer at an angle of (35 + 5) ° to the end of the pipe with an end ring of a width of 1 to 3 mm should be made. To ensure the width of the end ring, it is possible to form an internal chamfer.

6.10 Marking and packaging

6.10.1 General requirements for marking and packing of pipes shall comply with GOST 10692 with the additions given in 6.10.2−6.10.5.

6.10.2 Marking of pipes with a diameter of 273 mm or more in addition to the main marking shall contain:

— melting number;

— batch number;

— pipe number;

— designation of this standard;

— quality service mark.

6.10.3 At the request of the customer, the ends of each pipe with a diameter of 108 mm or less must be tightly closed with special safety parts (plugs, plugs, caps).

6.10.4. As agreed between the manufacturer and the customer, temporary protective coating should be applied to the pipes ensuring protection of the pipe surface against corrosion during transportation by covered transport and storage in dry rooms (allowed in unheated) for up to 6 months.

6.10.5 Upon agreement between the manufacturer and the customer, the pipes must be packed in materials with volatile corrosion inhibitors that protect the surface of the pipes from corrosion during the transport and storage of pipes, provided that they are transported by covered vehicles and stored in dry rooms (allowed in unheated) 6 months

6.10.6 Upon agreement between the manufacturer and the customer, additional pipe marking may be performed.

6.10.7 Upon agreement between the manufacturer and the customer, a special package of pipes may be made.

7 Safety and environmental requirements


Steel pipes are fireproof, explosion-proof, electrically safe, non-toxic, do not present a radiation hazard and do not harm the environment and human health during testing, storage, transportation, operation and disposal.

8 Acceptance rules

8.1 Pipes are accepted in batches.

The batch should consist of pipes of the same diameter, with one wall thickness, there should be one melting, one grade of steel, one type of heat treatment.

8.2 The number of pipes in the batch should be, pcs., Not more than:

— 400 — for pipes with an outer diameter up to and including 76 mm;

— 200 — for pipes with an outer diameter of more than 76 mm.

8.3. To verify the compliance of the pipes with the requirements of this standard, the manufacturer carries out acceptance tests.

The types of control and testing, the rates of selection of pipes, samples and samples from batch or smelting shall be as specified in Table 10.


Table 10 — Types of control and testing, selection standards

Test Status Type of testing or control Scope of control or testing
The rate of pipe selection from the batch The sampling rate from each selected pipe
Required Control of chemical composition and carbon equivalent (by ladle test)

1 sample GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Seamless steel pipes for operation under pressure not exceeding 6.4 MPa and at a temperature not exceeding 400 ° С

-
Tensile test at room temperature
2 1
Impact bending test at room temperature
2 3
Control of macrostructure 2 1
Technological test (for distribution, flattening, bending)
2 1
Control of diameter, wall thickness, length
100% -
Ovality and thickness control

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

-
Straightness control 100% -
Visual surface quality control
100% -
Hydrostatic testing 100%
Non-destructive testing
100% -
Finishing of ends

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

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Additional Control of the chemical composition of metal pipes
3 1
Impact bending test at minus 20 ° C, minus 40 ° C or minus 60 ° C
2 3 for each test temperature
The tensile test at 350 ° C and 400 ° C 2 1 for each test temperature
Hardness testing 2 1
Test for flattening pipes up to 60 mm in diameter.
2 1
Checking the geometric parameters of the chamfer

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

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Control of wall thickness by ultrasonic method
100% -

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СAcceptance is allowed according to the steel manufacturer’s data.

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СAccording to the technological documentation of the manufacturer.

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СIt is ensured that the diameter and wall thickness meet the requirements.

8.4 If unsatisfactory results are obtained, at least for one of the sample tests, a second test is carried out on a doubled number of pipes selected from the same lot, excluding pipes that have not passed the tests. Satisfactory results of repeated tests are extended to the whole lot.

If unsatisfactory results are obtained for the retesting of at least one of the samples, all the batch tubes are subjected to this test, excluding pipes that have not passed the tests, or are subjected to processing.

Recycled pipes are presented for acceptance as a new batch.

Repeated heat treatments (no more than three) of a rejected batch of pipes are allowed with their presentation to acceptance as a new batch. Leave is not considered a re-heat treatment.

8.5 On the accepted batch of pipes the document on acceptance control is issued: the certificate on passing of the technical control «3.1 V» in accordance with GOST 31458.

At the request of the customer, other documents on acceptance control are issued in accordance with GOST 31458.

The document on acceptance inspection should contain the following data:

— designation of this standard;

— type of pipes: hot-deformed or cold-deformed;

— pipe dimensions, manufacturing accuracy;

— type of length and length in mm;

— steel grade;

— chemical composition of steel;

— carbon equivalent GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С(for steels of grades 10Г2 and 09Г2С);

— designation of the document for the pipe billet and the name of the manufacturer;

— batch number;

— melting number;

— information on the thermal treatment carried out, including from rolling heating, indicating the temperature range of normalization in accordance with Table 3;

— the results of all tests and controls, including additional tests;

— information on conducting non-destructive flaw detection, indicating the method of control;

— information on conducting hydrostatic tests or guaranteeing the ability of the pipes to withstand the test hydrostatic pressure;

— guarantee of conformity of macrostructure.

9 Methods of testing and testing

9.1 The chemical composition of steel is determined by the methods of chemical analysis in accordance with GOST 12359, GOST 22536.0 — GOST 22536.11, GOST 27809. Samples are selected in accordance with GOST 7565.

It is allowed to use other methods of analysis, which ensure the necessary accuracy of the determination, corresponding to the specified standards.

When disagreements in the evaluation of the chemical composition, chemical analysis methods are used.

9.2. The tensile test shall be carried out at room temperature in accordance with GOST 10006, at a temperature of 350 ° C and 400 ° C in accordance with GOST 19040 on longitudinal proportional samples.

9.3. The impact test is carried out according to GOST 9454 on longitudinal specimens of type 11.


Table 11 — The size of the distribution

steel grade Increase in the outer diameter of the pipe,%, at wall thickness, mm
up to 4,0 inclusive. St. 4.0
10
10 6th
20
8 5
10G2
8 5
09G2S
8 5



The impact strength values are determined as the arithmetic mean from the test results of the three samples. On one sample, the impact strength can be reduced by no more than 10 J / cm GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° Сfrom the established norm.

9.4 Hardness control is carried out in accordance with GOST 9012. Hardness testing on specimens intended for tensile testing or impact bending is allowed.

9.5 It is allowed to control mechanical properties by non-destructive methods according to the relevant documentation. In case of disagreement in the evaluation of the results, the tests shall be carried out by the methods specified in 9.2−9.4.

9.6. Control of the macrostructure of the metal is carried out according to GOST 10243 on a pickled transverse circular sample.

9.7 Bend tests shall be carried out in accordance with GOST 3728.

9.8. The distribution tests are carried out according to GOST 8694 on a mandrel with a taper angle of 12 ° to increase the outer diameter of the pipes by the amount indicated for each steel grade in Table 11.

A mandrel test with a taper angle of 30 ° is allowed.

9.9. The flattening test shall be carried out in accordance with GOST 8695 until the distance between the flattening surfaces GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, mm, calculated by the following formula:

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, (3)


Where GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С — strain coefficient equal to 0.09 for steel grade 10 and 0.08 for the remaining steel grades.

9.10 The diameter of the pipes is controlled by a caliper in accordance with GOST 166, a micrometer according to GOST 6507 or a caliper-gauge according to GOST 2216, GOST 18360 and GOST 18365.

Measurement of the outer diameter in places of local cleaning of defects and imperfections is not carried out.

The inner diameter is controlled by the gauge in accordance with GOST 2015 or the plug gauge of POST 140110.

The wall thickness is controlled by a pipe micrometer in accordance with GOST 6507, an indicator wall mount or a thickness gauge according to GOST 11358 from both ends of the pipe.

As agreed between the manufacturer and the customer, the wall thickness control is carried out by ultrasonic method along the entire length of the pipe according to the manufacturer’s documentation.

Deviation from straightness of pipes in a length of 1 m is measured by a calibration ruler in accordance with GOST 8026 and a set of probes according to the normative document.

Deviation from straightness along the entire length of the pipe is determined in accordance with GOST 26877.

The control of the length of the pipes is carried out by measuring tape according to GOST 7502.

Checking the geometrical parameters of the chamfer is carried out according to the manufacturer’s documentation.

It is allowed to carry out control by other means of measurement, the metrological characteristics of which provide the necessary accuracy of measurements.

If there is any disagreement in the evaluation of the results, the measurements are carried out according to the specified standards.

9.11 The quality of the surface of the pipes is controlled visually without the use of magnifying devices and devices.

The depth of imperfections and cleansing areas is determined according to the manufacturer’s documentation.

9.12. Hydrostatic tests are carried out in accordance with GOST 3845 with the holding of pipes under pressure of not less than 10 s.

9.13 Non-destructive flaw detection is carried out:

— by ultrasonic method according to the manufacturer’s documentation, developed in accordance with the requirements of GOST 17410;

— eddy current method according to the manufacturer’s documentation;

— magnetic method according to the manufacturer’s documentation.

The sensitivity adjustment of the equipment corresponding to the rejection level is carried out according to a standard sample with artificial defects, the location, orientation, type and dimensions of which are indicated in Table 12.


Table 12 — Location, orientation, type and size of artificial defects

Method of control Type and size of pipes Location, orientation, type and size of the artificial defect

Longitudinal rectangular risk GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

Radial Drilled Hole GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

Surface Depth Length, mm (± 10%)
Width, mm Diameter, mm
The ultrasonic method

Hot-deform-
with GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С5

External and internal

(12.50 ± 1.25)% GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, but not less than 0.5 mm and not more than 2.0 mm

25 Not more than 1,5 -

Hot-deform-
with GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С5

(20.0 ± 2.0)% GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, but not less than 1.0 mm and not more than 3.0 mm

25 Not more than 1,5 -

Cold
formed
c GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С5

(10.0 ± 1.0)% GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, but not less than 0.3 mm and not more than 2.0 mm

25 Not more than 1,5 -

Cold
formed
c GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С5

(15.0 ± 1.5)% GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, but not less than 0.5 mm and not more than 2.5 mm

25 Not more than 1,5 -
Eddy current method:
— equipment with pass-through transformers
the
Any - - - -

2.0 ± 0.2 for GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С20
3.0 ± 0.2 at 20 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С60
4.0 ± 0.2 at 60 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С127
5.0 ± 0.2 for GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С127

— equipment with overhead converters
the
Any Outdoor

(12.50 ± 1.25)% GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, but not less than 0.3 mm and not more than 2.0 mm

25 Not more than depth -

Magnetic method GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С

Any Outdoor

(12.50 ± 1.25)% GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С, but not less than 0.3 mm and not more than 2.0 mm

25 Not more than twice the depth, but not more than 1.0 mm

2.0 ± 0.2 for GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С20
3.0 ± 0.2 at 20 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С60
4.0 ± 0.2 at 60 GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С127
5.0 ± 0.2 for GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° С127

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СFor pipes with a wall thickness of less than 2.0 mm or an internal diameter of 10 mm or less, the dimensions of the longitudinal rectangular risks shall be established by agreement between the manufacturer and the customer.

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СOn a standard specimen, three holes should be made, offset 120 ° from each other along the circumference of the specimen. The distance between the holes in the longitudinal direction should be sufficient to obtain independent and clearly distinguishable indications from them.

A standard sample with one hole is allowed. At the same time, the equipment is tuned dynamically, passing the standard sample through the equipment at the position of the hole 0 °, 90 °, 180 ° and 270 °.

GOST R 55442-2013 Pipes for boiler and heat exchange equipment. Technical conditions. Part 1. Steel seamless pipes for operation under pressure not more than 6.4 MPa and at a temperature not exceeding 400 ° СThe control is carried out when adjusting the sensitivity of the apparatus by one of the types of artificial defect: longitudinal rectangular risk or a radial drilled hole.

10 Transportation and storage


Transportation and storage of pipes are carried out in accordance with GOST 10692.

11 Manufacturer’s warranties

The manufacturer guarantees the compliance of the pipes with the requirements of this standard, provided that the norms and rules of transportation, storage of pipes and the correspondence of operating conditions to the purpose of the pipes are observed.