TU 14-1-941-74
Ministry of Ferrous Metallurgy
USSR
AGREED: Chief Engineer of Rosstroykeramika |
UDC Group B-32 I APPROVE: Chief Engineer Glavspetsstal MChM KULTYGIN V.S. |
HEAT-RESISTANT ALLOY RODS
BRANDS ХН45Ю (ЭП747)
TECHNICAL SPECIFICATIONS
TU 14-1-941-74
(replaces TU/A-7845 No. 211-69)
The term of introduction is 01.01.75. For the term until 01.01.80.
Agreed: Chief Engineer Sverdlovsk ceramic plant GUSEV Head of the laboratory standardization of the Central Research Institute of the Human Microbiology R. KOLYASNIKOVA Deputy Director of the State Scientific Center of the Central Scientific Research Institute of the Black Sea Microdistrict A. GULYAEV |
Developed by: Acting Chief Engineer Enterprises P.O. Box A-7845 A.M. BIRMAN |
1974
These technical conditions apply to the supply of forged and hot-rolled rods made of heat-resistant alloy grade EP747 (KhN45U), intended for the manufacture of tubular rollers.
1. ASSORTMENT
1.1. The rods are supplied with a diameter of 8.0-100 mm. The shape, dimensions and permissible deviations of the rods must correspond to:
a) hot rolled rods Ø 8.0-38.0 mm
Permissible deviations in diameter according to GOST 2590-71 taking into account note 2 of table 1
b) Forged rods Ø 40-100 mm
Permissible deviations in diameter according to GOST 1133-71, in addition to the positive tolerance, a negative tolerance is introduced, equal in value to that specified in GOST 1133-71.
The length of the rods is not regulated.
2. TECHNICAL REQUIREMENTS
2.1. The chemical composition of the alloy must correspond to Table No. 1.
Table 1
| Alloy brand | Carbon | Silicon | Manganese | Sulfur | Phosphorus | Chromium | Nickel | Aluminum | Barium | Cerium |
| calc. | ||||||||||
| EP747 | n.b. 0.10 |
n.b. 1.00 |
n.b. 1.00 |
n.b. 0,020 |
n.b. 0.025 |
15.0 17.0 |
44.0 46.0 |
2.9 3.9 |
n.b. 0.10 |
n.b. 0.003 |
| TU 14-1-941-74 | ||||||||||
| Change | Sheet | Doc. No. | Subp. | Date | ||||||
| Developer. | Rods made of heat-resistant alloy grade ХН45Ю (ЭП747) Technical conditions |
Lit. | Sheet | Sheets | ||||||
| Prov. | 1 | 2 | ||||||||
| N. counter. | ||||||||||
| Approved. | ||||||||||
| Inv. No. | Sub. and date | Exchange inv. No. | Inv. No. duplicate. | Sub. and date |
Note: Barium and cerium are introduced into the metal by calculation and are not determined by chemical analysis.
2.2. The rods are supplied without heat treatment.
2.3. Mechanical properties are determined at room temperature on longitudinal heat-treated samples and must meet the requirements of Table No. 2.
Table 2
| Recommended mode of heat treatment of samples | Tensile strength σ in kgf/ mm2 |
Yield strength σ 0.2 kgf/ mm2 |
Relative elongation δ 5 V % |
Relative compression V % |
| not less than | ||||
Hardening from 1050-1150 °C, air cooling |
60 | 22 | 15 | 20 |
2.4. Requirements for the surface, macrostructure according to GOST 5949-61.
3. ACCEPTANCE RULES AND TEST METHODS
PACKAGING, MARKING AND DOCUMENTATION
3.1. Acceptance rules, testing methods, marking, packaging and documentation in accordance with the requirements of GOST 5949-61.
4. PROCEDURE FOR PAYMENT FOR PRODUCTS
4.1. Prices for products are approved by the State Price Committee of the Council of Ministers of the USSR and are published in price lists and appendices to them.
Registered: 03.06.74
Head of the Technical Department of the Central Research Institute of the Black Sea Marine A. KAPLAN
| TU 14-1-941-74 | Sheet | |||||
| Change | Sheet | Doc. No. | Signature | 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 «14» _____ 07 _____ 2000 |
HEAT-RESISTANT ALLOY RODS
BRANDS ХН45Ю (ЭП747)
TECHNICAL SPECIFICATIONS
TU 14-1-941-74
Change #5
Holder of the original - TsSSM FSUE TsNIIchermet
Date of introduction: 01.08.2000
AGREED: Head of Technical department of OJSC "Chelyabinsk metallurgical plant" No. 35/2-3 G.A. Bratko from 06.06.2000 JSC Metallurgical Plant "Elektrostal" No. 375-30/13 dated June 22, 2000 Technical Director E.V. Butsky |
DEVELOPED BY: Deputy Director of the Central Scientific and Methodological Center FSUE TsNIIchermet V.D. Khromov 14.07.2000 |
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TU 14-1-941-74
1. Validity period of the TU: "Unlimited".
2. Introductory part. Replace the word "intended" with "intended".
Add the following paragraph as amended:
"Example of a symbol.
Hot rolled rod with a diameter of 8 mm, length 600 mm, made of alloy grade ХН45Ю (ЭП747):
Round hot-rolled-8x600-ХН45Ю TU 14-1-941-74".
3. Throughout the text of the TU, exclude the last two digits of the standard numbers - the year of approval of the standard.
4. Clause 1.1. Second paragraph. Replace the word "permissible" with "maximum".
5. Item 2.1. Table 1. Replace the mass fraction of cerium: "0.003" with "0.03"
6. Clause 2.3. Table 2 shall be set out as follows:
"Table 2
| Recommended mode of heat treatment of samples | Mechanical properties, not less than | |||
Temporary resistance, σ in , N/mm 2 (kgf/ mm2 ) |
Yield strength, σ 0.2 , N/mm 2 (kgf/ mm2 ) |
Relative elongation, δ 5 , % |
Relative narrowing, Ψ, % | |
Tempering from temperature 1050-1150 °C, cooling in the air |
590(60) | 215(22) | 15 | 20 |
".
7. Clause 2.4 shall be amended as follows:
"2.4. Surface requirements - according to GOST 5949."
8. Supplement the TU with clause 2.5 as amended:
"2.5. The macrostructure of the rods must not have any traces of shrinkage cavities, bubbles, cracks, or slag inclusions visible without the use of magnifying devices."
9. Section 4 shall be set out as follows:
"4. Transportation and storage.
4.1. Transportation and storage of rods - in accordance with GOST 7566."
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TU 14-1-941-74
10. Supplement the TU with a note as amended: "Note. Contract prices apply to rods according to these technical conditions."
11. Supplement the TU with Appendix 1 "List of regulatory documents referenced in the text of the technical specifications."
12. Replace Appendix 3 with the attached one numbered 2.
13. Letters of amendments from 15.04.75, 14.08.75, amendments No. 1, 2 and 4 shall be cancelled.
The examination was carried out by the Central Scientific Research Institute of Ferrous Metallurgy of the Federal State Unitary Enterprise: "14" _____ 07 _____ 2000 Deputy Director of the Center for Standardization and certification of metal products V.D. Khromov |
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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 5949-75 GOST 7566-94 GOST 22411-77 |
2.4, 3.1 4.1 Section 1 |
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Appendix No. 2
Mandatory
Form 3.1A
| Name of the type of product according to NTD | Product type code according to VKG OKP | ||
Heat-resistant alloy rods brand ХН45Ю (ЭП747) |
09 6400 | ||
| Blocks according to OKP | Designation according to NTD | OKP code | |
Steel grades and alloys |
ХН45Ю (ЭП747) | 8816 | |
| Profiles | Round hot rolled GOST 22411 Round forging GOST 22411 |
1120 1130 | |
Technical requirements |
TU 14-1-941-74 | 5770 5773 | |
Order forms and delivery conditions |
Not shorter | 25 | |
Group B 32 I APPROVEDeputy Chairman of TC 375 "Metal products from ferrous metals and alloys V. T. Ababkov «16» _____ 06 _____ 2015 |
HEAT-RESISTANT ALLOY RODS
BRANDS ХН45Ю (ЭП747)
TECHNICAL SPECIFICATIONS
TU 14-1-941-74
Change #6
Holder of the original: TsSSM FSUE "TsNIIchermet named after I.P. Bardin"
Date of introduction: 01.10.2015
AGREEDTechnical Director of Metallurgy OJSC Electrostal State Plant №716-29/13 I.V. Kabanov «02» _____ 06 _____ 2015 |
DEVELOPEDHead of the standardization laboratory metal products FSUE "TsNIIchermet named after I.P. Bardin" Yu.S. Ponomareva «25» _____ 05 _____ 2015 |
On page 4.
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TU 14-1-941-74
1 Title page. In the upper left corner, enter the code: "OKP 09 6488".
2 In the name and throughout the text of the technical specifications, replace the alloy grade ХН45Ю (ЭП747) with 10ХН45Ю (ЭП747).
3 Introductory part. The example of the conventional designation shall be presented in the wording:
"Hot-rolled rod, 8 mm in diameter, 600 mm long, made of alloy grade 10ХН45Ю (ЭП747) for hot pressure processing (subgroup "a"):
Round hot-rolled 8x600-10KhN45Yu (EP747) - a TU 14-1-941-74 .
Add the following paragraph as amended:
"The list of regulatory documents (RD) referenced in the text of the technical specifications is given in Appendix A. Codes for the alloy grade and rods are given in Appendix B."
4 Section 1 shall be set out in a new version:
"1 Assortment
1.1 The rods are made of round cross-section with dimensions from 8 to 100 mm inclusive.
In terms of shape, dimensions and maximum deviations, the rods must comply with:
a) hot rolled - GOST 22411:
- with a diameter from 8 to 9 mm inclusive with a maximum deviation of plus 1.0, minus 0.5 mm;
- with a diameter from 10 to 13 mm inclusive - with the 2nd accuracy group;
- with a diameter from 14 to 55 mm inclusive - with the 1st accuracy group;
- with a diameter from 60 to 70 mm inclusive - with a maximum deviation in diameter of plus or minus 2.5 mm (on the crimping stand of the 350/250 mm mill). The ovality of the rods should not exceed 0.7 of the sum of the maximum deviations in diameter, the curvature of the rods should not exceed 6 mm per 1 m of length.
6) forged - GOST 22411.
The length of the rods is not shorter than 500 mm."
5 Clause 2.1 Set out as amended:
"2.1 The chemical composition of the alloy grade 10ХН45Ю (ЭП747) according to melt analysis must correspond to Table 1.
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Table 1
| Mass fraction of elements, % | |||||||||
| carbon | silicon | manganese | sulfur | phosphorus | chromium | nickel | aluminum | barium | cerium |
| no more | calculated no more | ||||||||
| 0.10 | 1.00 | 1.00 | 0,020 | 0.025 | 15.00- 17.00 |
44.00- 46,00 |
2.90-3.90 | 0.10 | 0.03 |
| Note: Barium and cerium are introduced into the metal by calculation and are not determined by chemical analysis. | |||||||||
".
6 Point 2.3. Replace the words: "at room temperature" with "at temperature () °C".
Table 2. In the column "Recommended mode of heat treatment of samples", replace the temperature entry: "1050-1150 °C" with "from 1050 °C to 1150 °C".
7 Note to technical conditions on prices shall be excluded.
8 Appendix 1 "List of regulatory documents referenced in the text of the technical specifications". Replace the number of Appendix "1" with the designation "A".
9 Appendix 2 "Form 3.1A". Replace with the attached one marked "B".
10 Change No. 3 cancel.
11 Amendment 5, paragraph 3. Delete the word "two".
The examination was carried out by the Central Scientific and Methodological Center FSUE "TsNIIchermet named after I.P. Bardin" "11" _____ 06 _____ 2015 Acting Head of the Standardization Laboratory metal products S.A. Gorshkov |
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TU 14-1-941-74
Appendix B
(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 made of heat-resistant alloy grade 10ХН45Ю (EP747) |
09 6488 | 77.140.60 | At 32 | |
| Steel grade (alloy) | Steel (alloy) grade codes | |||
| 10ХН45Ю (EP747) | 8816 | |||
