GOST R 56594-2015
GOST R 56594−2015 seamless hot deformed Tubes made of corrosion-resistant high-alloy steel. Specifications
GOST R 56594−2015
NATIONAL STANDARD OF THE RUSSIAN FEDERATION
SEAMLESS HOT DEFORMED TUBES MADE OF CORROSION-RESISTANT HIGH-ALLOY STEEL
Specifications
Hot-deformed seamless pipes made of corrosion-resistant high-alloy steel. Specifications
OKS 23.040.10
OKP 13 0803
13 6000
Date of introduction 2016−06−01
Preface
1 DEVELOPED by the Open joint stock company «Russian scientific research Institute of pipe industry» (JSC «RosNITI»)
2 SUBMITTED by the Technical Committee for standardization TC 357 «Steel and cast iron pipes and cylinders"
3 APPROVED AND put INTO EFFECT by the Federal Agency for technical regulation and Metrology dated September 28, 2015 N 1394-St
4 INTRODUCED FOR THE FIRST TIME.
5 REISSUE. March 2016
Rules for the application of this standard has been established in GOST 1.0−2012* (section 8). Information about the changes to this standard is published in the annual (as of January 1 of the current year) reference index «National standards» and the official text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the upcoming issue of the monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet (www.gost.ru)
________________
* Probably, the error of the original. Should read: GOST R 1.0−2012. — Note the manufacturer’s database.
Introduction
This standard was developed with the aim of improving the existing regulatory documentation for seamless hot deformed tubes made of corrosion-resistant high-alloy steel.
This standard is developed on the basis of interstate standard GOST 9940, a number of technical conditions, including THAT 14−1-5410−2001* «seamless hot deformed Tubes of corrosion-resistant low carbon steel grades 04KH18N10, 03Х18Н11, 03Х17АН9, 304LN. Pilot batch», THE 14−156−24−92 «seamless hot deformed Tubes made of steel grade 03Х22Н5АМ3-FRI (ЧС123-FRI) with a high surface quality», THE 14−156−47−2003 «hot-pressed Pipes of steel grade 03Х21Н32М3Б-VI (ЧС33-VI)», THE 14−156−95−2012 «Pipe seamless hot-pressed steel 10KH18N10T-VD», THE 14−156−101−2013 «seamless hot deformed Tubes made of steel grade 09Х18Н9», and also taking into account domestic experience in the production of pipes.
In this standard included corrosion resistant high alloy steel grades not covered by GOST 9940. Also compared to the specified documents on the hot tubes of corrosion resistant steel this standard supplemented by the requirements to the method of production of steel and tube blank, macro — and microstructure of steel pipes, length and finish ends of pipe.
1 Scope
This standard applies to seamless hot-deformed pipes of General purpose made of corrosion-resistant steel alloy with high content of alloying elements.
Note — Pipes of steel grades specified in this standard are resistant to intergranular corrosion, not all aggressive environments.
2 Normative references
This standard uses the regulatory references to the following standards:
GOST 15.309−98 development System and production statement on manufacture. Testing and acceptance of products. The main provisions of the
GOST 166−89 (ISO 3599−76) Calipers. Specifications
GOST 1778−70 (ISO 4967−79) Steel. Metallographic methods of determination of nonmetallic inclusions
GOST 2216−84 Gauges-adjustable bracket smooth. Specifications
GOST 2789−73 surface Roughness. Parameters and characteristics
GOST 3845−75 Pipe metal. Test method hydraulic pressure
GOST 5632−2014 Alloyed stainless steels and alloys corrosion-resistant, heatresistant and heat-proof. Brand
GOST 5639−82 of Steel and alloys. Methods of detection and determination of grain size
GOST 6032−2003 (ISO 3621−1:1998, ISO 3561−2:1998) Steel and alloys corrosion-resistant. Methods of test for resistance to intergranular corrosion
GOST 6507−90 Micrometers. Specifications
GOST 7502−98 metallic measuring tape. Specifications
GOST 7565−81 (ISO 377−2-89) Iron, steel and alloys. Sampling method for determination of chemical composition
GOST 8026−92 Line calibration. Specifications
GOST 8694−75 Pipe. The test method for distribution
GOST 8695−75 Pipe. Test method for flattening
GOST 9012−59 (ISO 410−82, ISO 6506−81) Metals. Method of measuring hardness Brinell hardness
GOST 9847−79 optical Instruments for measuring surface roughness. Types and basic parameters
GOST 9940−81 seamless hot deformed Tubes made of corrosion-resistant steel. Specifications
GOST 10006−80 (ISO 6892−84) of the Pipe metal. Test method tensile
GOST 10243−75 Steel. Test methods and evaluation of the macrostructure
GOST 10692−2015 Pipe steel, cast iron and fittings to them. Acceptance, marking, packing. Transportation and storage
GOST 11358−89 Thickness and stenkomer indicator with a scale division of 0.01 and 0.1 mm. specifications
GOST 11878−66 Steel austenitic. Methods for the determination of the content of ferritic phase in the bars
GOST 18360−93 Gauges-bracket sheet for diameters from 3 to 260 mm. Dimensions
GOST 18365−93 Gauges bracket sheet with changeable lips for diameters over 100 to 360 mm. Dimensions
GOST 19040−81 Pipe metal. Method of tensile tests at elevated temperatures
GOST 19300−86 Means of measurement of surface roughness by profile method. The profiling-contact profilometers. Types and basic parameters
GOST 26877−2008 metal Products. Methods of measuring form deviations of
GOST 28548−90 of steel Pipe. Terms and definitions
GOST 30432−96 Pipe metal. The method of sampling, blanks and samples for mechanical and technological tests
GOST 31458−2015 (ISO 10424:2013) steel Pipes, of iron and fittings to them. Documents on acceptance inspection
GOST R 55942−2014 (ISO 6761:1981) steel Tubes. Trim the ends of pipes and fittings for welding. General technical requirements
GOST R ISO 10893−10−2014 seamless steel Tubes and welded. Part 10. Ultrasonic method of automated control for the detection of longitudinal and (or) transverse defects over the entire surface
Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or in the annual information index «National standards» published as on January 1 of the current year, and the editions of the monthly information index «National standards» for the current year. If replaced with a reference standard, which was given an undated reference, then it is recommended to use the current version of this standard, taking into account all enabled in this version modifications. If replaced with a reference standard, which is given a dated reference, it is recommended to use the version of this standard referred to above by year of approval (acceptance). If after approval of this standard in the reference standard, which is given a dated reference, a change affecting a provision to which reference, the provision is recommended to be applied without taking into account this change. If the reference standard is cancelled without replacement, the position in which reference is made to him, recommended to be used in part not affecting this link.
3 Terms and definitions
This standard applies the terminology according to GOST 15.309, GOST 5632, GOST 26877, GOST 28548 and terms [1]* in relation to the imperfections of the surface.
________________
* See Bibliography. — Note the manufacturer’s database.
4 Assortment
4.1 steel grades
Pipes made of corrosion-resistant high-alloy steel grades 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 06Х16Н15М3Б, 06KH18N10T, 08Х14МФ, 08Х15Н5Д2ТУ, 09Х18Н9, 09KH18N10T, 10KH18N10T, 15KH18N12S4TJU, 20X13, 20H23N18, 30X13, 40X13.
Note — the use of specific methods of smelting and remelting in the designation of steel grades indicate additional hyphenated designation of these methods of melting and (or) remelting in accordance with GOST 5632.
4.2 Dimensions
Tubes are manufactured with outer diameter from 57 to 325 mm and wall thickness from 3.5 to 32.0 mm regular accuracy of manufacturing, in accordance with the size range according to GOST 9940.
By agreement between the manufacturer and the customer pipes can be manufactured with dimensions that are not specified in this standard.
By agreement between the manufacturer and the customer pipes can be manufactured with high manufacturing precision in outside diameter and (or) the wall thickness according to GOST 9940или extreme deviations of external diameter and wall thickness not provided by this standard.
Note — Weight of 1 m pipe is calculated in accordance with GOST 9940 at a density of steel in table A. 1 (Appendix A).
4.3 Length
The length of the pipe manufacture:
a) of random length in the range of 1.5−12.0 m;
b) measuring length within off-gage length;
in) dimensional length within off-gage length;
g) of limited length within off-gage length.
The party of pipes of random length may be no more than 15% of the pipes length from 0.75 to 1.5 m.
By agreement between manufacturer and customer in a batch of pipes of standard length may be no more than 10% of tubes of random length.
By agreement between the manufacturer and the customer the tubes can be made of length not covered in this standard.
4.4 Performance of the surface
Pipe supplied with surface after hot deformation.
At the request of the customer supply pipe:
— surface after etching;
— machined outer surface after grinding or turning.
4.5 Examples of symbols
Examples of symbols
Pipe outer diameter 89 mm, regular accuracy of manufacturing, wall thickness of 8 mm, regular accuracy of manufacturing, off-gage length, steel grade 02Х18Н11, GOST R 56594−2015:
Pipe-89x8−02Х18Н11-GOST R 56594−2015.
Pipe outer diameter 89 mm, high precision manufacturing (in), wall thickness of 8 mm, high precision manufacturing (in), length 3.0 m (3000), steel grade 03Х18Н11, GOST R 56594−2015:
Tube 89 вх8 вх3000−03Х18Н11-GOST R 56594−2015.
Pipe outer diameter 89 mm, high precision manufacturing (in), wall thickness of 8 mm, regular accuracy of manufacturing, a length of multiples of 6.0 m (6000 cu), steel grade 06KH18N10T, GOST R 56594−2015:
Tube 89 вх8х6000 cu-06KH18N10T-GOST R 56594−2015.
Pipe outer diameter 89 mm, regular accuracy of manufacturing, wall thickness of 8 mm, high precision manufacturing (in), limited length 3.0 m (3000 CT), steel vacuum-induction melting brand 02Х18Н11-VI according to GOST R 56594−2015:
Pipe-89x8 вх3000 og 02Х18Н11-VI-GOST R 56594−2015.
4.6 the Information provided in the order
4.6.1 When ordering pipe manufactured under this standard, the customer must specify in the order the following mandatory requirements:
a) designation of this standard;
b) steel grade (see 4.1);
in) dimensions (see 4.2);
d) the length and the specific length for measuring limited lengths or dimensional length (see 4.3).
4.6.2 If necessary, the customer may specify in the order the following requirements:
a) surface treatment of pipes, etching (see 4.4);
b) processing the outer surface of the pipe by grinding or turning operation (see 4.4);
C) the type and mode of heat treatment (see 5.1.4);
d) mass fraction of sulfur no more than 0,020% steel grades 15KH18N12S4TJU, 20X13, 30X13, 40X13 (see 5.2);
d) mass fraction of manganese from 1.0% to 2.0% in steel grades 06KH18N10T, 09KH18N10T (see 5.2, table 1, footnote 3);
e) mass fraction of sulphur, not more than 0,015%, phosphorus — not more than 0,025% steel grades 06KH18N10T, 09KH18N10T (see 5.2, table 1, footnote 5);
g) tensile tests at room temperature with standard yield strength for pipes of steel grades 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 06Х16Н15М3Б, 06KH18N10T, 08Х14МФ, 08Х15Н5Д2ТУ, 09Х18Н9, 09KH18N10T, 10KH18N10T, 15KH18N12S4TJU, 20H23N18 (see 5.3.1, table 3, footnote 1);
I) the control hardness for pipes of steel grades 20X13, 30X13, 40X13 (see 5.3.1, table 3, footnote 1);
K) tensile tests at elevated temperatures for steel grades 06Х16Н15М3Б, 06KH18N10T, 08Х14МФ, 09Х18Н9, 09KH18N10T (see 5.3.2);
l) tests for a flattening of pipes of steel grades 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 08Х14МФ, 09Х18Н9 a wall thickness of not more than 15% of the outer diameter (see 5.4.1);
m) testing the distribution pipes of steel grades 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 08Х14МФ, 08Х15Н5Д2ТУ, 09Х18Н9 external diameter not exceeding 150 mm and a wall thickness of not more than 9.0 mm (see 5.4.2);
n) test for resistance to intergranular corrosion of pipes of steel grades 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 06Х16Н15М3Б, 06KH18N10T, 09KH18N10T, 10KH18N10T (see 5.4.3);
p) capacity of pipes of steel grades 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 06Х16Н15М3Б, 06KH18N10T, 08Х14МФ, 08Х15Н5Д2ТУ, 09Х18Н9, 09KH18N10T, 10KH18N10T, 15KH18N12S4TJU, 20H23N18 to withstand hydrostatic test pressure (see 5.9.1)
R) non-destructive defectoscopy (see 5.9.2);
C) finishing of all types of BP2 or QC2 according to GOST R 55942 (see 5.10.2);
t) the supply of a single melting within a lot (see 7.1);
y) twice the rate of selection of pipes from the party (see 7.3);
f) method of remote control for steel grades 03KH17N14M3, 03Х18Н11 (see 8.7, table 8, footnote 3);
x) provoking heating at a temperature of (590±10)°C for steel grades 06KH18N10T, 09KH18N10T (see 8.7, table 8, footnote 4);
C) the duration of exposure in a boiling solution of (10,0±0,025) h for steel grades 06KH18N10T, 09KH18N10T (see 8.7, table 8, footnote 5).
4.6.3 If necessary between the manufacturer and the customer can be agreed and specified in the order, the following requirements:
a) sizes not covered by this standard (see 4.2);
b) the high precision in outside diameter and (or) the wall thickness (see 4.2).
C) the maximum deviation of outer diameter and (or) wall thickness not covered by this standard (see 4.2);
d) inclusion of no more than 10% of tubes of random length in a batch of pipes of standard length (see 4.3).
d) length not included in this standard (see 4.3);
e) chemical composition not covered by this standard (see 5.2);
g) norms of mechanical properties at room temperature, not covered by this standard (see 5.3.3);
I) norms of mechanical properties and (or) temperature is not covered by this standard (see 5.3.3);
K) testing the flattening of pipes of steel grades 02Х18Н11, 06Х16Н15М3Б, 06KH18N10T, 08Х15Н5Д2ТУ, 09KH18N10T, 10KH18N10T, 15KH18N12S4TJU, 20X13, 20H23N18, 30X13, 40X13 a wall thickness of not more than 15% of the outer diameter and the distance between sludinajumi surfaces (see 5.4.1, 8.5, table 6, footnote 1);
l) testing the distribution pipes of steel grades 03Х22Н5АМ3, 06Х16Н15М3Б, 06KH18N10T, 09KH18N10T, 10KH18N10T, 15KH18N12S4TJU, 20X13, 20H23N18, 30X13, 40X13 external diameter not exceeding 150 mm and a wall thickness of not more than 9.0 mm and the size distribution (see 5.4.2, 8.6, table 7, footnote 1);
m) test for resistance to intergranular corrosion of pipes of steel grades 08Х14МФ, 08Х15Н5Д2ТУ, 09Х18Н9, 15KH18N12S4TJU, 20X13, 20H23N18, 30X13, 40X13, the method and conditions of test (see 5.4.3, 8.7, table 8, footnote 6);
n) content of the ferritic phase (see 5.5.2);
p) contamination of the nitrides and carbonitrides (see 5.5.3);
p) grain size (see 5.5.4);
C) limit deviations of length not covered by GOST 9940 (see 5.6.2);
t) seam allowance to each cut pipe dimensional length that is not covered by GOST 9940 (see 5.6.2);
a) deviation from straightness, not stipulated by GOST 9940 (see 5.6.3);
f) the roughness parameter of the machined surface Ra or Rz (see 5.7);
x) quality of the surface not provided by this standard (see 5.8.1);
C) the ability of tubes of steel grades 20X13, 30X13, 40X13 to withstand a hydrostatic pressure test of pipes and its value (see 5.9.1);
W) fabrication of pipes without finishing ends (see 5.10.3);
u) labeling and packaging not included in GOST 10692 (see 5.11.2);
e) test conditions for resistance to intergranular corrosion of pipes of steel grades 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 06Х16Н15М3Б, 06KH18N10T, 09KH18N10T, 10KH18N10T not covered by this standard (see 8.7, table 8, footnote 1);
u) the level of acceptance non-destructive flaw detection control, is not covered by this standard (see 8.16).
5 Technical requirements
5.1 production Method
5.1.1 the Steel used for the manufacture of pipes shall be melted by an open method or with the use of special methods of melting and remelting according to GOST 5632.
5.1.2 For the manufacture of pipes to be used rolled, forged, or tsentrobezhnolityh pipe concast billet.
Allowed the use of ingots produced with application of special methods of melting and (or) remelting according to GOST 5632.
5.1.3 Pipes shall be seamless and manufactured by hot deformation method.
5.1.4 Pipe heat treatment not subjected to.
Carrying out heat treatment of the tubes at the manufacturer’s choice to meet the requirements of this standard.
According to customer’s requirement pipe is subjected to heat treatment, the appearance and behavior which indicate in the order.
5.2 Chemical composition
Chemical composition of steel must comply with:
— GOST 5632 — for grades 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 09Х18Н9, 15KH18N12S4TJU, 20X13, 20H23N18, 30X13, 40X13;
— table 1 — for grades 02Х18Н11, 06Х16Н15М3Б, 06KH18N10T, 08Х14МФ, 08Х15Н5Д2ТУ, 09KH18N10T, 10KH18N10T.
At the customer’s request mass fraction of sulfur in steel grades 15KH18N12S4TJU, 20X13, 30X13, 40X13 should be no more than 0,020%.
By agreement between the manufacturer and the customer is allowed to produce pipes of steel with a chemical composition not covered by this standard.
Table 1 — Chemical composition
Percentage
| Steel grade | Mass fraction of elements in steel | |||||||||||
| Carbon | Cream tions |
Marga- Heff |
Chrome | Nickel | Titan | Molyb- den |
Niobium | Vana- DIY |
Sulfur | Phosphorus | Other | |
| 02Х18Н11 | 0.025 |
Not more than 0.25 | Not more than 2.0 | 17,0−19,0 | 10,5−12,5 | - | - | - | - | Not more than 0,020 | 0.025 | - |
| 06Х16Н15М3Б | 0,04−0,06 | 0,30−0,60 | 0,40−0,80 | 15,0−16,0 | 15,0−16,0 | Not more than 0.05 | 2,70−3,20 | Not more than 0.90 |
Not more than 0.30 | Not more than 0,010 | Not more than 0,015 | Nitrogen 0.025; cobalt is not more than 0.02; copper not more than 0.05; bismuth is not more than 0.0001; lead not more than 0.001; boron not more than 0.001; tin not more than 0.001; antimony not over 0.001; arsenic not more than 0.001 |
| 06KH18N10T | 0,03−0,06 | not more than 0,80 | not more than 0.5 |
17,0−19,0 | 10,0−11,0 | 6S |
- | - | - | Not more than 0,020 |
Not more than 0,035 |
Nitrogen not more than 0.05; |
| 08Х14МФ | Of 0.05−0.10 | 0,20−0,45 | 0,80−1,20 | 13,0−14,8 | - | - | 0,20−0,40 | - | 0,15−0,30 | Not more than 0,020 |
Not more than 0,035 | Cerium 0,0005−0,001 |
| 08Х15Н5Д2ТУ | Not more than 0.08 |
Not more than 0.70 | Not more than 1.0 | 13,5−14,8 | 4,8−5,8 | 0,03−0,05 | - | - | - | Not more than 0,018 | Not more than 0,020 | Copper 1,75−2,50 |
| 09KH18N10T | 0,07−0,10 | Not more than 0,80 | Not more than 0.5 |
17,0−19,0 | 10,0−11,0 | 5C |
- | - | - | Not more than 0,020 |
Not more than 0,035 |
Nitrogen not more than 0.05; |
| 10KH18N10T | 0,08−0,12 | Not more than 0.8 | 1,0−2,0 | 17,0−19,0 | 9,0−11,0 | 5 ( |
Not more than 0.3 | - | - | Not more than 0,015 |
Not more than 0,015 | Copper not more than 0.3 |
| ||||||||||||
Table 2 — Limit deviations of the mass fraction of chemical elements
Percentage
| Item | Steel grade | Maximum deviation of the mass fraction of element |
| Carbon |
06Х16Н15М3Б | +0,01 |
| 06KH18N10T, 10KH18N10T |
-0,01 | |
| Silicon | 08Х14МФ |
±0,03 |
| 06Х16Н15М3Б, 08Х15Н5Д2ТУ |
+0,1 | |
| Manganese | 06Х16Н15М3Б |
+0,2 |
| 08Х14МФ |
±0,02 | |
| 08Х15Н5Д2ТУ |
+0,1 | |
| Nitrogen | 06Х16Н15М3Б |
+0,010 |
| Titan | 08Х15Н5Д2ТУ |
-0,01 |
| Molybdenum | 08Х14МФ |
±0,20 |
| Chrome | 06Х16Н15М3Б |
+0,5 |
| Nickel | 06Х16Н15М3Б |
-0,5 |
| Copper | 06Х16Н15М3Б |
+0,05 |
| 08Х15Н5Д2ТУ |
+0,10 | |
| Bor | 06Х16Н15М3Б |
+0,001 |
| Note — the maximum deviations of the mass fraction of other elements according to GOST 5632. | ||
5.3 Mechanical properties
5.3.1 Mechanical properties of tubes at room temperature shall be as specified in table 3.
Table 3 — Mechanical properties at room temperature
| Steel grade | Tensile strength |
Yield strength |
Elongation |
Hardness Brinnell |
| not less than |
no more | |||
| 02Х18Н11 |
480 | 186 | 45 | - |
| 03Х17АН9 |
600 | 320 | 40 | - |
| 03KH17N14M3 |
490 | 196 | 35 | - |
| 03Х18Н11 |
460 | 185 | 45 | - |
| 03Х21Н32М3Б, 03Х21Н32М3БУ |
539 | 216 | 35 | - |
| 03Х22Н5АМ3 |
650 | 450 | Twenty five | - |
| 06Х16Н15М3Б |
539 | 216 | 35 | - |
| 06KH18N10T |
510 | 196 | 40 | - |
| 08Х14МФ |
540 | 345 | 17 | - |
| 08Х15Н5Д2ТУ |
882 | 686 | 10 | - |
| 09Х18Н9 |
490 | 196 | 40 | - |
| 09KH18N10T |
530 | 206 | 40 | - |
| 10KH18N10T | 530 |
196 | 40 | - |
| 15KH18N12S4TJU |
687 | 373 | 40 | - |
| 20X13 |
- | - | - | 197 |
| 20H23N18 |
490 | - | 35 | - |
| 30X13 |
- | - | - | 217 |
| 40X13 |
- | - | - | 229 |
| ||||
5.3.2 On request of the customer the pipes from steel grades 06Х16Н15М3Б, 06KH18N10T, 08Х14МФ, 09Х18Н9, 09KH18N10T manufactured with mechanical properties at elevated temperatures specified in table 4.
Table 4 — Mechanical properties at elevated temperatures
| Steel grade | Temperature, °C | Tensile strength |
Yield strength |
Elongation |
| not less than | ||||
| 06Х16Н15М3Б |
375 | 372 | 176 | 25 |
| 630 |
333 | 147 | 28 | |
| 06KH18N10T |
350 | 353 | 147 | 25 |
| 08Х14МФ |
- | 249 | - | |
| 09Х18Н9 |
600 | 294 | 98 | 28 |
| 09KH18N10T |
350 | 372 | 157 | 20 |
| Note — a Dash indicates that test is not provided. | ||||
5.3.3 by agreement between the manufacturer and the customer pipes can be manufactured with mechanical properties that are not specified in this standard, and (or) regulation of the mechanical properties at another temperature.
5.4 Technological properties
5.4.1 At the request of the customer the pipes from steel grades 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 08Х14МФ, 09Х18Н9 a wall thickness of not more than 15% of the outer diameter to withstand the test of flattening.
By agreement between the manufacturer and the customer pipes from steel of other grades of wall thickness not more than 15% of the outer diameter to withstand the test of flattening.
5.4.2 At the request of the customer the pipes from steel grades 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 08Х14МФ, 08Х15Н5Д2ТУ, 09Х18Н9 external diameter not exceeding 150 mm and a wall thickness of not more than 9.0 mm and must withstand the test of the distribution.
By agreement between the manufacturer and the customer pipes from steel of other grades of an external diameter exceeding 150 mm and a wall thickness of not more than 9.0 mm and must withstand the test of the distribution.
5.4.3 At the customer’s request pipes of steel grades 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 06Х16Н15М3Б, 06KH18N10T, 09KH18N10T, 10KH18N10T must withstand the test for resistance to intergranular corrosion.
By agreement between the manufacturer and the customer pipes from steel of other grades must withstand the test for resistance to intergranular corrosion.
5.5 Macro — and microstructure
5.5.1 In the macrostructure are not allowed brown, fistula, flocs, foreign metal and slag inclusions, birdhouses.
The manufacturer may guarantee the conformity of the macrostructure of these requirements without holding control.
5.5.2 by agreement between the manufacturer and the customer the contents of the ferritic phase must meet the requirements specified in the order.
5.5.3 By agreement between manufacturer and customer contamination by nitrides and carbonitrides must meet the requirements specified in the order.
5.5.4 by agreement between the manufacturer and the customer, the grain size must conform to the requirements specified in the order.
The manufacturer can guarantee the grain size not larger than No. 4 according to GOST 5639 without holding control.
5.6 maximum deviations of diameter, wall thickness, length and geometric tolerances
5.6.1 Limit deviation of the outer diameter and wall thickness of pipe normal or high precision manufacturing shall conform to the requirements of GOST 9940 for the appropriate accuracy.
5.6.2 Limit deviations of length of pipes lengths, dimensional length, limited length and seam allowance to each cut pipe dimensional length, shall conform to the requirements of GOST 9940.
By agreement between the manufacturer and the customer the tubes can be made with the limit deviations of length not provided for by GOST 9940.
By agreement between the manufacturer and the customer pipe dimensional length can be provided GOST 9940 allowance for each cut.
5.6.3 deviation of the pipe from straightness on any segment with a length of 1 m must comply with the requirements of GOST 9940.
By agreement between the manufacturer and the customer pipe is manufactured with deviations from straightness that are not specified in GOST 9940.
5.7 surface Roughness
By agreement between manufacturer and customer the roughness of the machined outer surface of the pipe can be normalized by the parameters Ra or Rz according to GOST 2789.
5.8 surface Quality
5.8.1 Quality of external and internal surfaces of pipes shall conform to the requirements of GOST 9940.
By agreement between manufacturer and customer can be established other requirements for the surface quality.
5.8.2 in the manufacture of pipes with a surface after etching the oxide on the surface is not allowed.
5.9 Continuity
5.9.1 According to customer’s requirement pipe steel grades 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 03Х22Н5АМ3, 06Х16Н15М3Б, 06KH18N10T, 08Х14МФ, 08Х15Н5Д2ТУ, 09Х18Н9, 09KH18N10T, 10KH18N10T, 15KH18N12S4TJU, 20H23N18 has to withstand the hydrostatic test pressure is calculated according to GOST 3845, when permitted by the tension in the pipe wall equal to 40% minimum strength at the room temperature for the corresponding steel grades.
By agreement between the manufacturer and the customer pipes from steel of other grades shall withstand hydrostatic test pressure specified in the order.
The manufacturer may guarantee the ability of pipes to withstand the test pressure without hydrostatic testing.
5.9.2 According to customer’s requirement pipe must undergo non-destructive defectoscopy.
5.10 Trim ends
5.10.1 Trim the ends of the pipes must comply with GOST R 55942, type FB.
5.10.2 According to customer’s requirement finishing pipe ends must comply with GOST R 55942, type BP2 or QC2.
5.10.3 by agreement between the manufacturer and the customer pipe manufactures without finishing all.
5.11 Labeling and packaging
5.11.1 Requirements to marking and packaging of pipes should correspond to GOST 10692.
5.11.2 by agreement between the manufacturer and the customer can set requirements to marking and packaging of pipes not covered by GOST 10692.
6 safety Requirements and environmental protection
Seamless hot deformed tubes of corrosion-resistant high-alloy steel fireproof, explosion-proof, elektrobezopasen, non-toxic, do not represent a radiation hazard and do not provide harm to the environment and human health during test, storage, transportation, operation and disposal.
7 acceptance Rules
7.1 Pipe take parties.
The party should consist of pipes of the same steel grade, same size, same species and regime of heat treatment (thermally treated tubes).
At the request of the customer party should consist of pipes of one heat.
7.2 the Number of pipes in the lot shall be not more than 200 PCs.
7.3 To check the conformity of the pipes with the requirements of this standard, the manufacturer conducts acceptance control.
Controls, standards selection of pipes and samples from the party or briefs must comply with table 5.
At the request of the customer sampling is carried out with twice the normal selection of pipes from the party.
Table 5 — Types of control and selection norms
| Status control | Control | Rule selection of pipes from the party |
The rate of sampling from each selected pipe |
| Mandatory | Control of chemical composition |
2 samples |
|
| Tensile test at room temperature with standard strength and elongation |
2 | 1 | |
| Control of macrostructure |
2 | 1 | |
| Control of outer diameter, wall thickness, length |
100% | ||
| Alignment control |
100% | ||
| Control of surface quality |
100% | ||
| Control trim ends |
|||
| Additional NY |
Tensile test at room temperature with standard yield strength |
2 | 1 |
| Tensile test at elevated temperature | 2 | 1 For each test temperature | |
| Hardness control |
2 | 1 | |
| Flattening tests; |
2 | 1 | |
| Test distribution |
2 | 1 | |
| The test for resistance to intergranular corrosion |
2 | 1 | |
| Control of grain size |
2 | 1 | |
| Control of the content of the ferritic phase |
2 | 1 | |
| Air pollution control steel nitrides and carbonitrides |
2 | 3 | |
| Control of surface roughness |
2 | 1 | |
| Hydrostatic testing |
100% | ||
| Non-destructive testing |
100% | ||
| |||
7.4 Other acceptance rules must comply with GOST 10692.
7.5, adopted On party tubes draw up a document on acceptance inspection 3.1 or 3.2 in accordance with GOST 31458.
8 Methods of control and testing
8.1 the Samples for mechanical and technological tests are taken in accordance with the requirements of GOST 30432, to control the macrostructure — GOST 10243, for chemical analysis — GOST 7565.
8.2 Chemical composition of steel determined by standard methods of chemical analysis.
Allowed to apply other methods of analysis, ensuring the accuracy of determining the mass fraction of elements in the chemical composition of the steel.
If there is disagreement in the evaluation of the chemical composition of the used methods of chemical analysis.
8.3 tensile Tests at room temperature carried out according to GOST 10006. Tensile test at elevated temperatures is carried out according to GOST 19040.
The speed of the movable grip of the testing machine shall be not more than 10 mm/min a higher speed of the movable grip of the testing machine up to 40 mm/min after reaching the yield stress.
8.4 hardness Control is carried out according to GOST 9012.
Carrying out testing of hardness on specimens designed for the tensile test.
8.5 Testing the flattening is carried out according to GOST 8695 to obtain sludinajumi surfaces between the distance N, mm, is calculated according to the formula given in table 6.
Table 6 — Distance between sludinajumi surfaces
| Steel grade | The distance between sludinajumi surfaces N, mm |
| 03Х17АН9, 03Х18Н11, 08Х14МФ |
|
| 03KH17N14M3, 03Х21Н32М3Б, 03Х21Н32М3БУ, 09Х18Н9 |
|
| 03Х22Н5АМ3 |
|
| 02Х18Н11, 06Х16Н15М3Б, 06KH18N10T, 08Х15Н5Д2ТУ, 09KH18N10T, 10KH18N10T, 15KH18N12S4TJU, 20X13, 20H23N18, 30X13, 40X13 |
|
| |
When discovering a tapered samples of the smallest cracks and tears resulting from the disclosure of surface imperfections due to production method, it is possible to repeat the flattening test another sample from the same tube, with preliminary removal of surface layers to a depth of not more than 0.2 mm, for pipe external diameter up to 114 mm incl., and not more than 1 mm — for pipes with outside diameter over 114 mm.
8.6 expansion Testing is carried out according to GOST 8694 on the mandrel with the taper angle 30° to the magnitude distribution shown in table 7.
Allowed the use of the mandrel with a taper angle of 6° or 12°.
Table 7 — Size distribution
| Steel grade |
The amount of the distribution, % |
| 02Х18Н11, 03Х17АН9, 03KH17N14M3, 03Х18Н11, 03Х21Н32М3Б, 03Х21Н32М3БУ, 08Х14МФ, 08Х15Н5Д2ТУ, 09Х18Н9 |
10,0 |
| 03Х22Н5АМ3, 06Х16Н15М3Б, 06KH18N10T, 09KH18N10T, 10KH18N10T, 15KH18N12S4TJU, 20X13, 20H23N18, 30X13, 40X13 |
|
| |
8.7 Test for resistance to intergranular corrosion is carried out according to GOST 6032 method and test conditions specified in table 8.
Table 8 — Methods and test conditions
| Steel grade | Test method | Test conditions | |||
| Mode triggers heating | Environment cooling | Prolonged- the possibility of exposure in a boiling solution, h | |||
| The temperature- RA, °C |
Prolonged- the possibility of exposure, min. | ||||
| 02Х18Н11 |
Do | 650±10 | 60±5 | The air | 48,0±0,25 |
| 03KH17N14M3 |
AMU | 650±10 | 60±5 | The air | 8,0±0,25 |
Do |
Without provoking heat | Without cooling |
48,0±0,25 | ||
| 03Х18Н11 |
AMU | 650±10 | 60±5 | The air | 8,0±0,25 |
Do |
650±10 | 60±5 | The air | 48,0±0,25 | |
| 03Х21Н32М3Б, 03Х21Н32М3БУ |
AMU | 650±10 | 60±5 | The air | 8,0±0,25 |
| 03Х17АН9, 03Х22Н5АМ3, 10KH18N10T |
AMU | 650±10 | 60±5 | The air | 8,0±0,25 |
| 06Х16Н15М3Б |
AMU | 650±10 | 120±5 | The air | 8,0±0,25 |
| 06KH18N10T, 09KH18N10T |
AMU | 650±10 |
120±5 | The air | 24,0±0,25 |
| 08Х14МФ, 08Х15Н5Д2ТУ, 09Х18Н9, 15KH18N12S4TJU, 20X13, 0Х23Н18*, 30X13, 40X13 |
|||||
| |||||
__________________
* Verostko, the error of the original. Steel grade should read «20KH23N18». — Note the manufacturer’s database.
8.8 Control of macrostructure is carried out according to GOST 10243 on ProTrainer cross ring sample.
8.9 Control of grain size is carried out according to GOST 5639.
If there is disagreement as to the amount of grain used for method comparison with the reference scales.
8.10 Control of the content of ferritic phases is carried out by metallographic methods churchyard 11878 rating with the maximum score. The sample for the manufacture of thin sections taken according to the scheme shown in figure 1. The length of the sample and should be less than 10 mm allowance for grinding b — not less than 0.5 mm.
Figure 1 — Scheme of sampling
and the length of the sample; b — allowance for grinding; 1 — plane of the cut; 2 — plane section
Figure 1 — Scheme of sampling
8.11 air pollution Control nitrides and carbonitrides carried out by sh, a variant SH3, Ш4 or Ш6 according to GOST 1778.
If there is disagreement in the assessment of contamination by nitrides and carbonitrides used option Ш6.
8.12 Control of the outer diameter of the pipes is carried out with a Vernier caliper according to GOST 166, micrometer according to GOST 6507 or caliber-clip 2216 GOST, GOST and GOST 18360 18365.
The measurement of the outer diameter in places local Stripping of defects and imperfections is not carried out.
The control of wall thickness of pipes is carried out with a micrometer type MT according to GOST 6507, flat santomera or thickness gauge according to GOST 11358 both ends of the pipe.
Control the length of the pipes is carried out the measuring tape according to GOST 7502.
The deviation of the pipe from straightness on any segment with a length of 1 m determined using a calibration ruler according to GOST 8026 and a set of probes.
Allowed to control the geometric parameters to use other means of measurement, metrological characteristics which provide the required measurement accuracy.
8.13 the quality Control of the pipe surface is carried out visually without the use of magnifying devices.
The depth of the imperfections and areas of Stripping is determined by the manufacturer’s documentation.
8.14 Control of surface roughness of pipes is carried out with a profilograph-profilometer according to GOST 19300 or optical device according to GOST 9847.
8.15 Hydrostatic testing carried out according to GOST 3845 with aging pipes under pressure of not less than 10 s.
8.16 non-destructive flaw detection testing is carried out by ultrasonic method churchyard R ISO 10893−10 with acceptance level U3.
By agreement between the manufacturer and the customer non-destructive flaw detection control may be conducted with a different level of acceptance.
8.17 Control of the finishing of the pipe ends is carried out according to the manufacturer’s documentation.
9 Transportation and storage
Transportation and storage is carried out according to GOST 10692.
10 manufacturer’s Warranty
The manufacturer guarantees the conformity of the pipes with the requirements of this standard subject to the rules and regulations of transportation, storage tubes and matching conditions purpose pipes.
Annex a (informative). The density of steel
Appendix A
(reference)
Table A. 1
| Steel grade | Density, g/cm |
| 02Х18Н11 |
8,12 |
| 03Х17АН9 |
8,00 |
| 03KH17N14M3 |
7,75 |
| 03Х18Н11 |
8,12 |
| 03Х21Н32М3Б |
8,11 |
| 03Х21Н32М3БУ |
8,11 |
| 03Х22Н5АМ3 |
8,03 |
| 06Х16Н15М3Б |
8,00 |
| 06KH18N10T |
7,90 |
| 08Х14МФ |
7,80 |
| 08Х15Н5Д2ТУ |
7,80 |
| 09Х18Н9 |
7,90 |
| 09KH18N10T |
7,90 |
| 10KH18N10T |
7,90 |
| 15KH18N12S4TJU |
Of 7.51 |
| 20X13 |
7,67 |
| 20H23N18 |
7,70 |
| 30X13 |
7,67 |
| 40X13 |
7,65 |
Bibliography
| [1] OST 14−82−82* | Sectoral system of product quality control of ferrous metallurgy. Departmental control of product quality. Seamless steel tubes rolled. The surface defects. Terms and definitions |
| UDC 621.774.3.08:006.354 | OKS 23.040.10 | OKP 13 0803 |
| 13 6000 | ||
| Key words: seamless tubes, hot tubes, corrosion-resistant high-alloy steel, size, length, condition of delivery, performance surface, chemical composition, mechanical properties, testing, control, labeling | ||
