TU 14-1-3820-84 EP450

OKP 09 1500

Group B 32 I APPROVE Director of the Standardization Center and certification of metal products FSUE "TsNIIchermet named after I.P. Bardin", deputy Chairman of TC 375 V. T. Ababkov "10" 02 2012

PIPE BLANK MADE OF CORROSION-RESISTANT STEEL GRADE

12Х12М1БФР-Ш (ЭП450-Ш)
TECHNICAL SPECIFICATIONS
TU 14-1-3820-84
Change #6

Holder of the original: TsSSM FSUE "TsNIIchermet named after I.P. Bardin"

Date of introduction: 01.04.2012

AGREED Technical Director OJSC "Metallurgical Plant "Elektrostal" №29-30/13 I.V. Kabanov "18" 01 2012 Head of the Technological Department of JSC Pervouralsk New Pipe Plant №710-005 S.B. Prilukov "12" 01 2012

DEVELOPED BY Acting Head of the Standardization Laboratory metal products of the Central Steel Works FSUE "TsNIIchermet named after I.P. Bardin" Yu.S. Ponomareva "20" 2 2012

On page 2.

P.2

Change #6

TU 14-1-3820-84

1 The validity period of the technical conditions shall be extended until 01.01.2017.

2 Introductory part. The first paragraph should be stated as follows:

"These technical conditions apply to stripped or turned tubular blanks made of corrosion-resistant steel grade 12Kh12M1BFR-Sh (EP450-Sh), smelted by the electroslag remelting method."

Example of symbol. Replace:

- conventional designation for increased rolling accuracy "(B)" on "B1", "B" on "B1";

- GOST 2590-88 to GOST 2590-2006 - 2 times.

3 Point 1.2. Replace the conventional designation of the section "Ø" with the word "diameter".

4 Clause 1.3. Supplement with the following symbols: "(MD)" for measured length and "(KD)" for multiple length.

5 Clause 2.2. The first and second paragraphs shall be set out as follows:

"Pipe blanks with a diameter of 85 to 170 mm are supplied in a stripped or turned condition, blanks with a diameter of 70 mm are supplied without stripping or turning.

The surface roughness of a stripped or turned tubular blank Rz should not exceed 80 µm according to GOST 2789 or should correspond to standards agreed upon between the manufacturer and the consumer."

6 Clause 2.4. Replace the words: "supplier plant" with the word "manufacturer".

7 Clause 3.8. First paragraph. Replace the conventional designations of the section "ØШ" with the words: "diameter, side of a square".

Second paragraph: Replace the conventional designation of the section "Ø" with the word "diameter".

8 Section 4 and paragraph 4.1. Replace the word "documentation" with the words "documentation preparation".

9 Note to technical conditions on prices shall be excluded.

10 Appendix 1. "List of regulatory documents referenced in the text of technical specifications". Replace reference: GOST 2590-88 with GOST 2590-2006.

11 Preliminary notification No. ЦС/ТУ-3820 dated 29.12.2007 shall be cancelled.

The examination was carried out by the Central Scientific and Methodological Center FSUE "TsNIIchermet named after I.P. Bardin": "09" 02 2012 Acting Head of the Standardization Laboratory metal products Yu.S. Ponomareva

OKP 09 1500

Group B 31 I APPROVE: Director of the Standardization Center and certification of metal products FSUE "TsNIIchermet named after I.P. Bardin", Chairman of TC 375 V. T. Ababkov "14" 02 2007

PIPE BLANK MADE OF CORROSION-RESISTANT STEEL GRADE

12Х12М1БФР-Ш (ЭП450-Ш)
TECHNICAL SPECIFICATIONS
TU 14-1-3820-84
Change #5

Holder of the original: TsSSM FSUE "TsNIIchermet named after I.P. Bardin"

Date of introduction: 01.04.2007

AGREED Technical Director JSC Metallurgical Plant "Elektrostal" Yu.N. Koshelev No. 106-30/13 from 05.02.2007

DEVELOPED BY Deputy Director of the Central Scientific and Methodological Center FSUE "TsNIIchermet named after I.P. Bardin" V.D. Khromov "01" 02 2007

On page 3.

P.2

Change #5

TU 14-1-3820-84

1. The validity period of the technical conditions shall be extended until 01.01.2012.

2. Title page. In the upper right corner, replace the group "B 31" with "B 32".

3. Amendment No. 3, paragraph 4. Delete the word "two".

4. Appendix 1. Replace references: GOST 12344-88 with GOST 12344-2003, GOST 12345-88 with GOST 12345-2001, GOST 12351-81 with GOST 12351-2003, GOST 12361-82 with GOST 12361-2002.

5. Supplement the preamble with the following paragraph: "The list of regulatory documents referenced in the text of the technical specifications is given in Appendix 1. Codes for steel grade and tubular blanks are given in Appendix 2."

6. Notification No. 4 shall be cancelled.

The examination was carried out by the Central Scientific and Methodological Center FSUE "TsNIIchermet named after I.P. Bardin": "13" 02 2007 Deputy Director of the Center for Standardization and certification of metal products V.D. Khromov

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Change #5

TU 14-1-3820-84

Appendix 2

(required)

Form 3.1A

Name of the type of product according to ND	Product type code according to OKP (OK 005-93)		Code for OKS	Group
Pipe blank from corrosion-resistant steel grade 12X12M1BFR-SH (EP450-SH)	09 1500		77.140.60	At 32
Steel grade (alloy)		Steel grade codes (alloy)
12X12M1BFR-SH (EP450-SH)		8158

OKP 09 1500

Group B 31 I APPROVE Director of the Center for Standardization and certification of metal products of the Federal State Unitary Enterprise TsNIIchermet Chairman of TC 375 V. T. Ababkov "09" 10 2000

PIPE BLANK MADE OF CORROSION-RESISTANT STEEL GRADE

12Х12М1БФР-Ш (ЭП450-Ш)
TECHNICAL SPECIFICATIONS
TU 14-1-3820-84
Change #3

Holder of the original - TsSSM FSUE TsNIIchermet

Date of introduction: 01.11.2000

AGREED: JSC Metallurgical Plant "Elektrostal" No. 211-30/13 dated 04/12/2000 Technical Director E.V. Butsky

DEVELOPED BY: Deputy Director of the Central Scientific and Methodological Center FSUE TsNIIChM V.D. Khromov "05" 10 2000

P.2

Change #3

TU 14-1-3820-84

1. The validity period of the TU shall be extended until 01.12.2001.

2. Preamble. After the word "began" add the word "brands".

Remove the phrase about quality category.

3. Supplement with an example of a symbol:

"Example of a symbol.

Tubular blank of increased manufacturing precision (B), class I in curvature, measured length (ML), diameter 90 mm according to GOST 2590-88, made of steel grade 12Kh12M1BFR-Sh (EP450-Sh):

Preparation

4. Throughout the text of the TU, except for the example of the conventional designation, exclude the last two digits of the standard numbers - the year of approval of the standard.

5. Clause 2.5. Replace the word: "became" with the words: "pipe blank".

Table 2. Delete the word: "gap".

Replace units of measurement: "MPa" with "N/mm²".

6. Clause 3.5. Replace the reference: "GOST 20560-81" with "GOST 28473".

7. The note on prices shall be stated as follows: "Note. The price for the products is negotiable."

8. Replace Appendix No. 1 "List of regulatory documents" with the attached one.

9. Notification No. 1 is cancelled.

The examination was carried out by the Central Scientific Research Institute of Ferrous Metallurgy of the Federal State Unitary Enterprise: "05" 10 2000 Deputy Director of the Center for Standardization and certification of metal products V.D. Khromov

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Change #3

TU 14-1-3820-84

Appendix 1

Reference

List of regulatory documents for which there are

references in the text of technical specifications

Designation ND	The number of the item that contains the link
GOST 1133-71 GOST 1497-84 GOST 1778-70 GOST 2590-88 GOST 2789-73 GOST 7565-81 GOST 7566-94 GOST 9651-84 GOST 10145-81 GOST 10243-75 GOST 12344-88 GOST 12345-88 GOST 12346-78 GOST 12347-77 GOST 12348-78 GOST 12350-78 GOST 12351-81 GOST 12352-81 GOST 12354-81 GOST 12360-82 GOST 12361-82 GOST 28473-90	1.2 3.8 3.7 1.2 2.2 3.5 3.1, 4.1, 5.1 3.8 3.8 3.6 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5

OKP 09 1500

UDC Group B-31 I APPROVE: Deputy Director of the Central Research Institute of Human Medicine V.A. Sinelnikov

CORROSION-RESISTANT STEEL PIPE BLANK

GRANDS 12Х12М1БФР-Ш (ЭП450-Ш)

TECHNICAL SPECIFICATIONS
TU 14-1-3820-84
Change #2

Date of introduction: 19.12.92 Holder of the original: TsNIIChM

AGREED: First Deputy Director VNIINM F.G. Reshetnikov

DEVELOPED BY: Acting Technical Director Elektrostal plant V.I. Kalinin

1. Item 2.1. table. clarify the chemical composition: set the manganese content to no. 1.0% instead of no. 0.8%; molybdenum 1.5÷2.0% instead of 1.2÷1.8%; niobium 0.15÷0.4% instead of 0.25-0.55%; boron 0.005÷0.015% instead of 0.001÷0.01%.

Note to Table 1, add point 2: set the tolerance for niobium to minus 0.1%.

The examination was conducted: 10/19/92.

Deputy Director of the Standardization Center

and certification of black products

metallurgy

V.D. Khromov

USSR MINISTRY OF FERROUS METALLURGY

OKP 09 1500 AGREED: Chief Engineer VPO Soyuztrubostal USSR World Junior Championships V.A. Tkachenko "16" faprelya 1984

UDC 669.14-462-412 Group B 31 I APPROVE: Chief Engineer VPO Soyuzspetsstal USSR World Junior Championships N.I. Drozdov "21" 05 1984

CORROSION-RESISTANT PIPE BLANK

STEEL GRADE 12Х12М1БФР-Ш (ЭП450-Ш)

TECHNICAL SPECIFICATIONS

TU 14-1-3820-84

(Replaces TU 14-1-2488-78)

The term of introduction is from 01.03.1985. For the term up to 01.03.1990.

Agreed: Chief Engineer PNTZ E.O. Nodev Head of the laboratory structural steels Central Research Institute of Human Microbiology V.D. Khromov

Developed by: Chief Engineer Elektrostal plant K.Ya. Fedotkin Director of INMT TsNIIChM L.V. Meandrov First Deputy directors of the enterprise P.O. Box R-6575 F.G. Reshetnikov

1984

These technical conditions apply to stripped tubular blanks made of 12Kh12M1BFR-Sh (EP450-Sh) steel, smelted by electroslag remelting. The technical level indicators laid down in the TU correspond to the first quality category.

Delivery of tubular blanks is carried out in accordance with the conditions 01-1874-62.

1. ASSORTMENT

1.1. The tubular blank is supplied with a diameter of 70 mm and 85-170 mm.

1.2. The maximum deviations in diameter and curvature of the stripped tubular blank must meet the requirements of GOST 2590-71.

Limit deviations and curvature for Ø70 mm in accordance with GOST 1133-71.

1.3. The tubular blank is supplied in measured or multiple lengths. When supplying blanks in measured or multiple lengths, the tolerance for the total length is plus 100 mm.

The diameter and length of the pipe blank are specified in the order.

2. TECHNICAL REQUIREMENTS

2.1. The chemical composition of steel must comply with the requirements of Table 1.

2.2. The workpiece with a diameter of 85-170 mm is supplied in a stripped condition, the workpiece with a diameter of 70 mm is supplied without stripping.

Surface roughness of stripped tubular blank

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Developer.					Pipe blank made of corrosion-resistant steel grade 12X12M1BFR-SH (EP450-SH) Technical conditions	Lit.			Sheet	Sheets
Prov.							A		2	12
N. counter.
Approved.

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Table 1

Mass fraction of elements, %%
Carbon	Silicon	Manganese	Sulfur	Phosphorus	Chromium	Nickel	Molybdenum	Vanadium	Niobium	Boron	Calcium
0.10 0.15	no more				11.0 13.5	0.05 0.30	1,2 1.8	0.10 0.30	0.25 0.55	0,001 0.01	0,001 0.05
	0.5	0.8	0,015	0.025

Note: boron and calcium are introduced into the metal by calculation and are not determined by chemical analysis.

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should not exceed Rz = 80 µm GOST 2789-73 for workpieces with a diameter of 85-170 mm or correspond to agreed standards.

The ends of the workpiece must be cut evenly and cleared of burrs.

The obliqueness of the end face should not exceed 5 mm for a workpiece with a diameter of 120 mm or less, and 7 mm for a workpiece larger than 120 mm.

It is permitted to supply a workpiece with centering holes, as well as with two centering holes on one end.

The outer surface of the blanks should not have any folds, kinks, cracks, rolled or unrolled contaminants, rolled or unrolled bubbles visible without the use of magnifying devices.

Local defects must be completely removed by flat cutting or grinding with an emery wheel. The depth of cutting or grinding must not exceed half the sum of the maximum deviations for a workpiece diameter of up to 140 mm, and for a workpiece of 140 mm or more - the sum of the maximum deviations, calculated from the nominal diameter of the workpiece. The width of the cutting or grinding must be at least six times its depth. No more than 3 grindings of maximum depth are allowed in one section. Individual small scratches, dents and other defects of mechanical origin are allowed without grinding, if their depth does not exceed 1 mm.

2.3. The forging force of the workpiece must be at least 4.0 for a diameter of up to 120 mm and at least 2.5 for a diameter over 120 mm.

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2.4. It is permitted to supply the blank in an annealed condition according to the supplier plant's regime without hardness control.

2.5. The mechanical properties of steel are determined on longitudinal samples made from heat-treated blanks and must comply with the requirements of Table 2.

2.6. The macrostructure of the workpiece in the delivered condition must not have cracks, gas bubbles, subcrustal bubbles, crust folds, delaminations, traces of shrinkage cavities, or slag inclusions visible to the naked eye.

When checking a workpiece on a transverse macrotemplate, the following is allowed:

central porosity - no more than 1.0 points;

point heterogeneity - no more than 1.0 points;

liquation square - no more than 1.0 point.

Layered crystallization and increased etchability square are not a rejection feature.

2.7. The content of non-metallic inclusions in the metal of the pipe blank must not exceed the maximum score:

sulfides - no more than 1 point,

line oxides - no more than 1 point,

point oxides - no more than 2 points,

brittle silicates - no more than 2 points,

plastic silicates - no more than 1 point,

non-deformable silicates - no more than 1 point.

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Table 2

Recommended heat treatment mode control- samples	Temperature tests, °C	Mechanical properties, not less than
		Temporary tensile strength, σ in MPa (kgf/ mm2 )	Limit fluidity σ 0.2 MPa (kgf/ mm2 )	Relative elongation δ 5 %	Long lasting strength σ MPa (kgf/ mm2 )
Hardening 1050-1080 °C, water, tempering 720-740 °C, exposure 1-1.5 hours, air.	room 350 600	640 (65) 490 (50) 310 (32)	490 (50) 343 (35) 275 (28)	12 12 20	196 (20)

Note: 1. Heat treatment of samples is carried out in blanks with a diameter of 20-25 mm.

2. The test time for long-term strength is not less than 100 hours.

3. The need for testing at a temperature of 600 °C is specified in the order.

4. After delivery of at least 20 metal melts, the mechanical property standards are specified if necessary.

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After delivery of at least 20 melts, the standards for non-metallic inclusions are clarified.

For a workpiece with a diameter of 150-170 mm, the results of non-metallic inclusion control are optional.

3. ACCEPTANCE RULES AND TEST METHODS

3.1. General acceptance rules according to GOST 7566-81.

3.2. The tubular blank is presented for acceptance in batches consisting of blanks from the same heat and the same size.

3.3. The quality of the surface is checked without the use of magnifying devices. If necessary, bleaching is carried out.

3.4. The dimensions of the finished tubular blank are checked using measuring instruments that ensure the required measurement accuracy.

3.5. Sampling for chemical analysis is carried out in accordance with GOST 7565-81.

Chemical analysis is carried out according to GOST 12344-78, GOST 12345-80, GOST 12346-78, GOST 12347-77, GOST 12348-78, GOST 12350-78, GOST 12351-81, GOST 12352-81, GOST 12354-81, GOST 12360-82, GOST 12361-66 and GOST 20560-81 or other methods that ensure the accuracy of determination required by the standards.

3.6. The macrostructure is controlled on two etched transverse templates selected from two blanks in the supplied profile. If there is only one blank in the melt, the control is performed on one template.

Control of the macrostructure is carried out according to the methods and scales of GOST 10243-75.

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3.7. Control of non-metallic inclusions is carried out on 6 samples from the melt according to the methodology and scales of GOST 1778-70 using the "Sh" method, option "Sh6".

3.8. Mechanical properties are tested on two samples from the melt, cut from a reforged blank ØSh 80-100 mm.

It is permitted to test mechanical properties on samples cut from the supplied profile up to Ø 100 mm.

Mechanical properties are determined at room temperature according to GOST 1497-73, at elevated temperatures according to GOST 9651-73.

Determination of long-term strength is carried out on 2 samples in accordance with GOST 10145-81.

4. MARKING, PACKAGING, DOCUMENTATION

4.1. Marking, packaging and documentation in accordance with GOST 7566-81.

5. TRANSPORTATION AND STORAGE

5.1. Transportation and storage in accordance with GOST 7566-81.

Note: Wholesale prices for products are subject to approval.

State Committee of Prices of the USSR and are published in supplements

to price list 01-08.

Registered by the Central Research Institute of the Black Sea: 06.09.1984

Head of the Standardization Department

ferrous metallurgy

V. T. Ababkov

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Appendix No. 1

to TU 14-1-3820-84

(informative)

SCROLL

documents referenced in the text

technical conditions

Designation

Name

GOST 2590-71 GOST 1133-71 GOST 2789-73 GOST 7566-81 GOST 7565-81 GOST 12344-78 GOST 12345-80 GOST 12346-78 GOST 12347-77 GOST 12348-78 GOST 12350-78 GOST 12351-81 GOST 12352-81 GOST 12354-81 GOST 12360-82 GOST 12361-66 GOST 20560-81 GOST 10243-75

Hot rolled round steel. Assortment. Forged steel round and square. Assortment. Surface roughness. Parameters, characteristics and designations. Rolled products and further processed products. Rules for acceptance, marking, packaging, transportation and storage. Cast Iron, Steel and Alloys. Sampling Method for determination of chemical composition. Alloyed and high-alloy steels. Methods of chemical analysis. Alloyed and high-alloy steels. General requirements for chemical treatment methods analysis. Steel. Methods of testing and evaluation of macrostructure.

9.

TU 14-1-3820-84

GOST 1778-70 GOST 1497-73 GOST 9651-73 GOST 10145-81

Steel. Metallographic methods determination of non-metallic inclusions. Metals. Tensile testing methods. Metals. Tensile Test Methods at elevated temperatures. Metals. Method of testing for long-term strength.

10.

FORM 3.1A

Appendix 3 to TU 14-1-3820-84

(Required)

Name of product type according to NTD		Product type code according to VKG OKP
Pipe blank made of corrosion-resistant steel grade 12X12M1BFR-SH (EP450-SH)		0 9   1 5 0 0
Blocks according to OKP	Designation according to NTD		OKP code
Steel grades	12X12M1BFR-SH		8158
Profiles	circle GOST 2590-71 circle GOST 1133-71		1110 1140
Technical requirements	TU 14-1-3820-84		6180
Order forms and delivery conditions	n/a		00

Calculation of codes checked:

Senior Engineer, Standardization Department

TsNIICHM E.P. Rakhmanova

11.