TU 14-1-272-72

Ministry of Ferrous Metallurgy

USSR

AGREED:

Head of Main Pipe Industry of the USSR Ministry of Energy and Transport Mechanics

Nazarov I.K.

"10" 05 1972

UDC

Group B-32

I APPROVE:

Chief Engineer of Glavspetsstal MChM USSR

Kultygin V.S.

«17» 05 1972

Rods and strips made of heat-resistant alloys of the KhN35VT (EI612) grades,

ХН35КВТ (ЭИ612К), ХН75ТБЮ (ЭИ869)

Technical conditions

TU 14-1-272-72

(instead of ChMTU/TsNIIChM 37-58)

Date of introduction 30/VI - 72g. For the period until 07/01/2014.

Agreed:

Chief Engineer of LMZ

named after the 22nd Congress of the CPSU

/ Chernyshev P.S. /

Chief Engineer

Leningrad plant

turbine blades

/ Severov M. /

Deputy Director

Polzunov Central Design Institute

/ Terentyev I.K. /

Developed by:

Head of the Technical Department of Glavspetsstal

/ Markelov A.I. /

Chief Engineer

Elektrostal plant

/ Zhuchin V.N. /

Head of the standardization laboratory

Technical Department of the Central Research Institute of the Black Sea Fleet R.I. KOLYASNIKOV

1972

These technical conditions apply to the supply of hot-rolled, forged rods and strips made of alloy grades KhN35VT (EI612), KhN35KVT (EI612K) and KhN75TBYu (EI869), intended for the manufacture of fasteners and blade parts for turbines.

1. S o r t a m e n t

1.1. The alloy is supplied in the form of hot-rolled and forged round and square bars and strips.

In terms of shape, dimensions and permissible deviations, rods and strips must meet the following requirements:

a) forged and rolled rods of round and square cross-section with a diameter of up to 125 mm inclusive according to GOST 1133-41, forged rods with a square side of mm, as well as rods with a square side of mm, subject to subsequent hot processing.

b) strip in accordance with GOST 4405-75.

The length of rods and strips is specified in the order.

When supplying rods and strips of multiple lengths, the tolerance for the total length is set at plus 100 mm, minus 50 mm.

Rods and strips are supplied in sizes according to the order and the specialization of the mill and hammers.

					TU 14-1-272-72

Change	Sheet	Doc. No.	Subp.	Date
Developer.					Rods and strips made of heat-resistant alloys of the KhN35VT (EI612) grades, ХН35КВТ (ЭИ612К), ХН75ТБЮ (ЭИ869) Technical conditions	Lit.	Sheet	Sheets
Checked							1	6

N. counter.
Approved.

Inv. No.

Sub. and date

Mutual inv. No.

Inv. No. oak.

Sub. and date

Table No. 1

Alloy brand

Content of elements in % %

Carbon

Silicon

Manganese

Sulfur

Phosphorus

Chromium

Nickel

Tungsten

Titanium

You

Cobalt

Aluminum

Iron

Bor calc.

Zirconium calc.

Niobium

ХН35ВТ (ЭИ612)

n.b. 0.12

n.b.

0.60

1.0

2.0

n.b. 0.020

14.0

16.0

34.0

38.0

2.8

3.5

1,1

1.5

according to PVC 0.35

n.b.

0.5

osn.

ХН35КВТ (ЭИ612К)

n.b. 0.10

n.b.

0.50

1.0

2.0

n.b. 0.020

14.0

16.0

34.0

38.0

2.8

3.5

1,2

1.6

3.5

4.5

n.b.

0.5

osn.

n.b.

0,010

ХН75ТБЮ (ЭИ869)

n.b. 0.08

n.b.

0.8

n.b.

1.0

n.b. 0.020

14.0

17.0

osn.

1.5

1.9

1,1

1.4

n.b.

3.0

n.b.

0.005

n.b.

0.003

1.0

1.5

Note: Boron and zirconium are introduced into the metal by calculation and are not determined by chemical analysis.

Al n.b. 0.5 for alloys EI612 and EI612K, p. 2.1 of amendment No. 3 dated 17.04.88.

Co - the value is not regulated (PZK 35, p. 13)

					TU 14-1-272-72	Sheet
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Inv. No.	Sub. and date	Mutual inv. No.	Inv. No. oak.	Sub. and date

2. Technical requirements

2.1. The chemical composition of the alloy must meet the requirements specified in Table No. 1.

2.2. The alloy is supplied without heat treatment and hardness control.

2.3. Mechanical properties at a temperature of °C, determined on longitudinal heat-treated samples, must comply with the standards specified in Table No. 2.

2.4. The macrostructure of the alloy on transverse etched templates should not have traces of shrinkage cavities, bubbles, cracks, films and slag inclusions visible to the naked eye.

The grain size must not be larger than 4 points according to GOST 5639-65.

3. Acceptance rules and testing methods

3.1. Surface, test methods, acceptance rules, marking, packaging and technical documentation in accordance with GOST 5949-61.

4. Calculation of wholesale prices

4.1. Calculation of wholesale prices according to the appendix to the TU.

Registered: May 30, 1972

Head of the Technical Department of the Central Research Institute of the Black Sea Fleet / Kaplan A.S. /

					TU 14-1-272-72	Sheet
						4
Change	Sheet	Doc. No.	Signature	Date		4

Inv. No.	Sub. and date	Mutual inv. No.	Inv. No. oak.	Sub. and date

USSR MINISTRY OF FERROUS METALLURGY

AGREED:

Deputy Head of Technical

Directorate of the USSR Ministry of Energy and Machine Building

07.29.82 V.P. Goloviznin

UDC

Group B-32

I APPROVE:

Chief Engineer

VPO Soyuzspetsstal

11/15/82 V.S. Kultygin

RODS AND STRIPS FROM HEAT-RESISTANT ALLOYS

BRANDS ХН35ВТ (ЭИ612), ХН35КВТ (ЭИ612К),

ХН75ТБЮ (ЭИ869)

TECHNICAL SPECIFICATIONS

TU 14-1-272-72

Change #2

The deadline for introduction is 6.03.83.

The validity period of the TU has been extended until 01.01.88.
Item 2.3, table 2.

In Table 2, the section "Mechanical properties" shall be presented in a new version:

Table No. 2

Alloy brand	Recommended modes of heat treatment of samples						Mechanical properties not less than
	Austenization			Aging			Tensile strength kgf/ ^m2	Yield strength kgf/ ^mm2 σ _t	Relative elongation % δ ₅	Relative narrowing %	Impact strength A _n kgcm/ ^cm2
	Heating temperature °C	Excerpt hour	Cooling medium	Temp-ra °C	Excerpt hour	Cooling medium	Tensile strength kgf/ ^m2	Yield strength kgf/ ^mm2 σ _t	Relative elongation % δ ₅	Relative narrowing %	Impact strength A _n kgcm/ ^cm2
ХН35ВТ (EI612)	1080 1100	1-1.5	water	850-900 700 ^±10	10 25-50	air air	75.0	40	15	35	7
ХН35КВТ (ЭИ612К)	1080 1100	1-1.5	water	850-900 700 ^±10	10 25-50	air air	60	35	15	35	7
ХН75ТБЮ (ЭИ869)	1100 ^±10	6	water	1000 ^±10	2	cooling with oven up to 900°	95	55	24	28	10
				900 ^±10	1	cooling with oven up to 800°

Note: 1. The results of testing the mechanical properties of the alloy grade EI869 are optional until data is accumulated.

2. The results of yield strength control for the alloy grade EI612K are optional until data is accumulated.

3. Heat treatment of samples is carried out in blanks of 20-25 mm, and for rods with a cross-section of less than 25 mm in full

cross-section of the rod.

4. Impact toughness testing is performed on round profiles from Ø 16 mm, on square ones - from 12 mm and above.

5. The duration of aging at 700° is determined by the titanium content in the alloy. With a titanium content of

At the lower limit of 1.1-1.2%, the aging duration is 50 hours, with a higher titanium content 25-40 hours.

					TU 14-1-272-72	Sheet
						4
Change	Sheet	Doc. No.	Signature	Date		4

Inv. No.	Sub. and date	Mutual inv. No.	Inv. No. oak.	Sub. and date

Ministry of Ferrous Metallurgy of the USSR

OKP 09 6400

UDC

Group B-32

I APPROVE

Chief Engineer

VPO Soyuzspetsstal

USSR World Junior Championships

03.02.88 A.G. Korobov

RODS AND STRIPS FROM HEAT-RESISTANT ALLOYS

BRANDS ХН35ВТ (ЭИ612), ХН35КВТ (ЭИ612К),

ХН75ТБЮ (ЭИ869)

TECHNICAL SPECIFICATIONS

TU 14-1-272-72

Change #3

Implementation date: 17.04.88

AGREED:

Chief Engineer

POT LMZ

V.K. Glukhikh

USSR Ministry of Energy and Machine Building

Deputy Director

VPO CKTI

A.P. Ogurtsov

Head of the Laboratory for Standardization of Special Steels at the Central Research Institute of Black Metals

V.T. Tabakov

DEVELOPED BY:

Chief Engineer

Elektrostal plant

K.Ya. Fedotkin

Change #2

to TU 14-1-272-72

Table 2

Alloy brand	Mechanical properties, not less than
Alloy brand	Temporary tensile strength σ _in MPa (kgf/ ^mm2 )	Yield strength σ _0.2 MPa (kgf/ ^mm2 )	Relative elongation δ ₅ %	Relative narrowing ψ %	Impact strength A _n J/ ^cm2 (kgcm/ ^cm2 )
ХН35ВТ (ЭИ612)	740 (75)	390 (40)	15	35	68.6 (7)
ХН35КВТ (ЭИ612К)	590 (60)	345 (35)	15	35	68.6 (7)
ХН75ТБЮ (ЭИ869)	930 (95)	540 (55)	24	28	98 (10)

3. Introduce a section "Transportation and storage" into the technical specifications.

5. TRANSPORTATION AND STORAGE

5.1. Metal products are transported by all types of transport in accordance with the transportation rules applicable to the given type of transport and the conditions for loading and securing cargo approved by the USSR Ministry of Railways.

5.2. Rods and strips must be stored under conditions that ensure the preservation of their quality indicators, as determined by the technical conditions.

Note: Wholesale prices are included in price list No. 01-08, 1980 edition

Amendment No. 3 to TU 14-1-272-72

1. Item 2.1. Supplement the table of chemical composition with an aluminum content of at least 0.5% for EI612 and EI612K alloys.

2. The validity period of the TU has been extended until 01.01.93.

Registered by TsNIIChM 17.02.88

Head of the Standardization Department

ferrous metallurgy

V.T. Tabakov

OKP 09 6400

AGREED:

UDC

Group B-32

I APPROVE:

Deputy Director of the Central Research Institute of Human Medicine

V.A. Sinelnikov

RODS AND STRIPS FROM HEAT-RESISTANT ALLOYS

BRANDS ХН35ВТ (ЭИ612), ХН35КВТ (ЭИ612К),

ХН75ТБЮ (ЭИ869)

TECHNICAL SPECIFICATIONS

TU 14-1-272-72

Change #4

Holder of the original: TsNIIChM

The term of introduction is 01.01.93. For the period until pvyavapvpp

Agreed:

Chief Engineer

POT LMZ

L.P. Balashov

Deputy Director

NPO CKTI

L.L. Bachilo

Developed by:

Technical Director

Elektrostal plant

A.P. Sisev

Amendment No. 4 TU14-1-272-72

1. The validity period of the TU has been extended until 01.01.2000.

2. Throughout the text of the technical specifications, exclude alloys of the KhN35KVT (EI612K), KhN75TBYu (EI869) grades.

3. Section I, assortment, subparagraph "a" shall be set out in a new version:

a) hot rolled - GOST 2590-88, GOST 2591-88

normal rolling accuracy;

Hot rolled rods supplied from the rolling mill stand 350/250 mm Ø 60 ÷ 70 mm with a maximum deviation of +2.5 mm, Ø75 mm with a maximum deviation of +3.0 mm, the ovality of the rods should not exceed 0.6 of the maximum deviation in diameter, the curvature should not exceed 0.5% of the length.

Forged up to 125 mm inclusive - GOST 1133-71;

Forged rods Ш mm and Ш mm, intended for subsequent hot processing.

4. Clause 2.4. GOST 5639-65 shall be replaced by GOST 5639-82.

The examination was carried out:

Deputy Director of the Standardization Center

and certification of metal products

"28" aaa12aaa 1992

V.D. Khomov

					TU 14-1-272-72	Sheet

Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Mutual inv. No.	Inv. No. oak.	Sub. and date

OKP 09 6400

Group B32

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

"24" aaa11aaa 1999

HEAT-RESISTANT ALLOY RODS AND STRIPS

BRANDS ХН35ВТ (ЭИ612)

TECHNICAL SPECIFICATIONS

TU 14-1-272-72

Change #5

Holder of the original - TsSSM FSUE TsNIIchermet

Date of introduction: 01.01.2000

AGREED:

OJSC "Elektrostal"

No. 537-30/13 dated 10/27/99

Head of Technical Department

M.P. Migachev

DEVELOPED BY:

Deputy Director of the Central Scientific and Methodological Center of the Federal State Unitary Enterprise

Central Research Institute of Ferrous Metallurgy

V.D. Khromov

"23" aaa11aaa 1999

P.2

Change #5

TU 14-1-272-72

1. The validity period of the TU has been extended until 01.01.2005.

2. Title page. In the upper left corner, enter the code: OKP 09 6400.

3. Throughout the text, remove the last two digits from the standard numbers - the year the standard was approved.

4. Clause 1.1. Replace the words: "Alloy" with "Metal product", "permissible" with "maximum".

5. Item 2.1 Table 1. Replace the word: "content" with "mass fraction".

6. Item 2.3 Table 2. Replace the units of measurement: "MPa" with "N/ ^mm2 ".

Remove the word: "rupture".

7. Clause 5.1. Exclude the abbreviation: "USSR".

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

9. Supplement the TU with Appendix 1 "List of regulatory documents" and Appendix 2 "Form 3.1A".

10. Amendment No. 1 is cancelled.

The examination was carried out by the Central Scientific Research Institute of Ferrous Metallurgy of the Federal State Unitary Enterprise:

"23" aaa11aaa 1999

Deputy Director of the Center for Standardization and

certification of metal products

V.D. Khromov

P.3

Change #5

TU 14-1-272-72

Appendix 1

Reference

List of regulatory documents for which there are

references in the text of the TU

Designation ND

The number of the item that contains the link

GOST 1133-71

GOST 2590-88

GOST 2591-88

GOST 4405-75

GOST 5639-82

GOST 5949-75

1.1a)

1.1b)

2.4

3.1

Amendment No. 5 S.4

TU 14-1-272-72

Appendix No. 2

Form 3.1A

Name of the type of product according to NTD

Product type code according to VKG OKP

Rods and strips made of heat-resistant

alloy grade ХН35ВТ (ЭИ612)

09 6400

Blocks according to OKP

Designation according to NTD

OKP code

Steel and alloy grades

ХН35ВТ (ЭИ612)

8807

Profiles

Round hot rolled steel, normal, precision, GOST 2590

Square hot-smoked standard GOST 2591

Round forge GOST 1133

Squares GOST 1133

1111

1211

1150

1221

Technical requirements

TU 14-1-272-72

5210

5214

Order forms and

delivery conditions

K/d

Without indication

AGREED:

Chief Engineer

POT LMZ

A.P. Ogurtsov

Deputy Director

NPO CKTI

O.K. Terentyev

Head of the standardization laboratory

special steels TsNIICHM

V. T. Ababkov

DEVELOPED BY:

Head of Technical

Department of VPO "Soyuzspetsstal"

M.P. Kolyasnikov

Chief Engineer

Elektrostal plant

L.K. Kosyrev

Registered by the Central Research Institute of the Black Sea: 6.01.83.

Head of the Standardization Department

ferrous metallurgy

V. T. Ababkov

OKP 09 6400

Group B 32

I APPROVE:

Director of the Center for Standardization and

certification of metal products

FSUE TsNIIfermet named after I.P. Bardin,

Chairman of TC 375

V. T. Ababkov

"08"aaaa07aaaa2004

RODS AND STRIPS FROM HEAT-RESISTANT ALLOY GRADE ХН35ВТ (ЭИ612)

TECHNICAL SPECIFICATIONS

TU 14-1-272-72

Change #6

Holder of the original - TsSSM FSUE TsNIIchermet im. Bardin

Date of introduction: 01.10.2004

AGREED:

Chief Engineer of Zlatoustovsky OJSC

metallurgical plant"

S.B. Klyukvin

No. 07/TO-TU/1-272

from 07.06.2004

DEVELOPED BY:

Deputy Director of the Central Scientific and Methodological Center

FSUE TsNIIchermet named after I.P. Bardin

V.D. Khromov

"08"aaaa07aaaa2004

P.2 Change #6

TU 14-1-272-72

1. The validity period of the technical conditions shall be extended until 01.01.2010.

2. Replace Appendix 2 "Form 3.1A" with the attached one.

The examination was carried out by the Central Scientific and Methodological Center

FSUE TsNIIchermet named after I.P. Bardin

"08" aaa07aaa 2004

Deputy Director of the Center for Standardization and

certification of metal products

V.D. Khromov

P.3 Change #6

TU 14-1-272-72

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

Rods and strips made of heat-resistant alloy grade ХН35ВТ (ЭИ612)

09 6400

77.140.60

At 32

Steel grade

(alloy)

Brand codes

steel (alloy)

ХН35ВТ (ЭИ612)

8807

OKP 09 6488

Group B32

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" aaaaaaaaaaa 2009

RODS AND STRIPS OF HEAT-RESISTANT

ALLOY GRADE ХН35ВТ (ЭИ612)

TECHNICAL SPECIFICATIONS

TU 14-1-272-72

Change #7

The holder of the original is the Central Scientific Research Institute of Ferrous Metallurgy (TsSSM) of the Federal State Unitary Enterprise (TsNIIchermet)

named after I.P. Bardin"

Date of introduction: 01.10.2009

AGREED

Acting Head of Laboratory

standardization

metal products

FSUE "TsNIIchermet"

named after I.P. Bardin"

Yu.S. Ponomareva

"09" aaaaaaaaaaa 2009

DEVELOPED BY

Technical Director

JSC Metallurgical

Electrostal plant

I.V. Kabanov

"09" aaa04aaa 2009

On page 3.

p.2

Change #7

TU 14-1-272-72

1. The validity period of the technical conditions shall be extended until 01.07.2014.

2. Title page. In the upper left corner, replace the OKP code: "09 6400" with "09 6488".

3. Supplement the introductory part with an example of a symbol and a paragraph as amended:

"Example of conventional designation

Hot rolled rod, round, normal rolling accuracy (B1), non-dimensional length

(ND), with a diameter of 20 mm according to GOST 2590-2006, made of steel grade KhN35VT (EI612), for hot

pressure treatment (a):

Circle

The list of regulatory documents referenced in the text of the technical specifications is given in Appendix 1. Codes for steel grades and metal products are given in Appendix 2."

4. Clause 1.1, subclause a). Second paragraph. Replace the entry for maximum deviations:

"+2.5 mm" to "plus 2.5 mm" and "+3.0 mm" to "plus 3.0 mm".

Fourth paragraph. Replace the words: "in subsequent hot processing" with "for

subsequent hot pressure treatment."

5. Clause 2.3. Table 2. In the title of the column "impact toughness", replace the impact toughness designation "A _n " with "KCU".

6. Section 4 and Appendix "Calculation of wholesale prices" shall be excluded.

7. Section 5. Replace section and sub-section numbers: "5" with "4", "5.1" with "4.1" and "5.2" with "4.2".

8. Delete the note on prices.

9. Appendix 1. Replace references: GOST 2590-88 with GOST 2590-2006, GOST 2591-88 with GOST 2591-2006.

10. Replace Appendix 2 "Form 3.1A" with the attached one.

11. Amendment No. 5, paragraph 3. Delete the word "two".

12. Amendment No. 6 shall be cancelled.

The examination was carried out by the Central Scientific and Methodological Center

FSUE "TsNIIchermet named after I.P. Bardin":

"09" aaaaaaaaaaaa 2009

Acting Head of the Standardization Laboratory

metal products

Yu.S. Ponomareva

p.3

Change #7

TU 14-1-272-72

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

Rods and strips made of heat-resistant alloy grade ХН35ВТ (ЭИ612)

09 6488

77.140.60

At 32

Steel grade

(alloy)

Steel grade codes

(alloy)

ХН35ВТ (ЭИ612)

8807

5 Clause 4.3, item m) shall be set out in a new version:

"m) signature of the head of the quality service and the customer's representative, certifying the quality of the pipes and their compliance with the requirements of these technical conditions."

TU 14-1-272-72

RODS AND STRIPS FROM HEAT-RESISTANT ALLOY GRADE ХН35ВТ (ЭИ612)

TU 14-1-272-72

Change #6

AGREED:

DEVELOPED BY:

P.2

Change #6

TU 14-1-272-72

P.3

Change #6

TU 14-1-272-72

Appendix 2

(required)

Form 3.1A

Product type code according to OKP

(OK 005-93)

Steel grade

(alloy)

Brand codes

steel (alloy)

p.2

Change #7

TU 14-1-272-72

p.3

Change #7

TU 14-1-272-72

Appendix 2

(required)

Form 3.1A

Product type code according to OKP

(OK 005-93)

Steel grade

(alloy)

Steel grade codes

(alloy)

Specifications (TU)

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TU 14-1-272-72

RODS AND STRIPS FROM HEAT-RESISTANT ALLOY GRADE ХН35ВТ (ЭИ612)

TU 14-1-272-72

Change #6

AGREED:

DEVELOPED BY:

P.2

Change #6

TU 14-1-272-72

P.3

Change #6

TU 14-1-272-72

Appendix 2

(required)

Form 3.1A

Product type code according to OKP

(OK 005-93)

Steel grade

(alloy)

Brand codes

steel (alloy)

p.2

Change #7

TU 14-1-272-72

p.3

Change #7

TU 14-1-272-72

Appendix 2

(required)

Form 3.1A

Product type code according to OKP

(OK 005-93)

Steel grade

(alloy)

Steel grade codes

(alloy)

Payment ON-LINE

Specifications (TU)

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