TU-14-131-712-87
Organization PO Box G-4838
OKN 09 64 00 UDC
Group B-32
AGREED: I APPROVE:
Chief Engineer of the Enterprise PO Box A-1495 Chief Engineer of the Enterprise PO Box A-7845
V. V. Agderov K. Ya. Fedotkin
HOT-ROLLED BARS FROM HEAT-RESISTANT ALLOY
BRANDS KhN65VMTYu (EI893), KhN65VMTYu-VI (EI893-VI)
TECHNICAL CONDITIONS
TU 14−131−712−87
The term of introduction
Agreed: Developed:
AGREED: Chief Metallurgist PO Box A-1495 Weaver / Head Laboratory for standardization of special steels and alloys V. T. Ababkov. |
DEVELOPED: Head of Technical enterprise department PO Box F-7845 V. I. Kruzhkov |
1986 year
These technical conditions apply to hot-rolled rods made of heat-resistant alloy of the grade KhN65VMTYu (EI893), KhN65VMTYu-VI (EI893-VI) of open induction or vacuum-induction smelting, intended for machine parts obtained by subsequent cold machining.
Example of a symbol:
Hot-rolled rods KhN65VMTYu (EI893), KhN65VMTYu-VI (EI893-VI), round 20 mm — TU 14−131−712−87.
Lot up to 100 tons per year.
1. Range
1.1. Bars are supplied with diameters of Ø20 mm with a dimensional tolerance of ± 1.0 mm, with a length not shorter than 1000 mm.
1.2. The ovality of the bars should not exceed the diameter tolerance.
The curvature of the bars should not exceed 6 mm per 1 meter of length.
2. TECHNICAL REQUIREMENTS
2.1. The chemical composition of the alloy must meet the requirements of table. 1
2.2. The metal is supplied without heat treatment.
Table 1
| Mass fraction of elements,% | ||||||||||||||
| Carbon | Silicon | Manganese | Sulfur | Phosphorus | Tungsten | Chromium | Nickel | Titanium | Aluminum | Molybdenum | Iron | Boron calc. | Cerium calc. | Copper |
| n.b. 0.06 | n.b. 0.6 | n.b. 0.5 | n.b. 0.015 | n.b. 0.015 | 8.5−10.0 | 15.0−17.0 | sleep. | 1.2−1.6 | 1.2−1.6 | 3.5−4.5 | n.b. 3.0 | n.b. 0.01 | n.b. 0.025 | n.b 0.07 |
Note: Boron and cerium are introduced into the metal by calculation and cannot be determined by chemical analysis.
2.3 Surface, macrostructure of the alloy in accordance with TU 14−1-322−72.
2.4 Bars for fracture of heat-treated samples are not controlled.
2.5. The mechanical properties of the alloy at room temperature and a temperature of 750 ° C, determined on heat-treated longitudinal specimens, must meet the requirements of table. 2.
table 2
| Recommended heat treatment mode | Test temperature ° С | Mechanical properties, not less | |||
| Ultimate tensile strength, N / mm 2 in kgf / mm 2 | Elongation, 5% | Relative narrowing,% | Impact strength, Dn / cm 2 (kgcm / cm 2) | ||
Mode 1. Hardening 1170 ° ± 10 °, exposure 2 hours, cooling — air. Vacation 800 ° ± 10 °, exposure 12 hours, cooling — air. |
20 ° 750 ° |
880 (90) 640 (65) |
fifteen eight |
20 12 |
68 (7) - |
Mode 2. Hardening 1170 ° ± 10 °, exposure 2 hours, cooling — air. Vacation 1000 ° ± 10 °, -4 hours + 900 ° ± 10 °, -8 hours + 850 ° ± 10 °, -15 hours, cooling — air. |
|||||
Note: The heat treatment mode is selected by the supplier.
2.6. Control for hairs according to TU 14−1-336−72.
3. RULES OF ACCEPTANCE, TEST METHODS
3.1. General rules of acceptance in accordance with GOST 7566−81.
3.2. Acceptance rules, test methods in accordance with TU 14−1-322−72 in the scope of TU requirements.
4. MARKING, PACKAGING, TRANSPORTATION AND STORAGE
4.1. Marking, packaging, transportation and storage in accordance with TU 14−1-322−72 and GOST 7566−81.
Note: Wholesale prices are set according to the attachment.
REGISTERED:
Deputy Head of the technical department.
M. M. Klyuev
FORM 312
Appendix 2 TU 131−712−87
| Name of the type of product according to NTD | Product type code according to VNG OKP | ||
| Hot-rolled rods of heat-resistant alloy of the grade KhN65VMTYu (EI893), KhN65VMTYu-VI (EI893-VI) | 09 6400 | ||
| Blocks by OKP | Designation according to NTD | OKP code | |
| Steel grades | KhN65VMTYu (EI893), KhN65VMTYu-VI (EI893-VI) | 8842 8842 | |
| Profiles | Hot rolled circle not standard size According to TU | 1160 | |
| Technical requirements | TU 14−131−712−87 | 9500 | |
| Order forms and delivery terms | M / d | eleven | |
The calculation of the codes was checked:
Head Department of Standardization TsNIICHM V. T. Asabkov
Send: dep 336 to 310 shop 352
| Form 552−11 | ||||||||||
Certificate No. 299on changes in material standards for the product 459, 459M, 4594, 494B, 494B1, 494SI, 459MI, 459ME, 494SABASIS FOR CHANGE: Clarification of documentation in accordance with technol. process.Shop No. 52−12 / 321 0409 173 | ||||||||||
| Detail | Raw material | Cost rate | ||||||||
| Detail number | Number of products | Name | GOST for material | Size of the ordered material | GOST for assortment | unit of measurement | One piece | Per product | Shop consumer | |
| Bolt 459.34.01 Witnesses (80x3 = 240 mm) | 3 pcs | KhN65VMTYu (EI893) | TU 14−131−832−91 | Cr20 | 2590−2006 | kg | 0.245 | 0.735 | 352 | |
Introduce: Hire grade. const. nicklefor from one heat and one batch of heat treatment | ||||||||||
Made up 09/01/17 |
Beginning workshop «510» Beginning T.B. workshop «510» |
Beginning office mater. standards | Beginning technical department |
Old TU 14−131−712−87
DK-6420 05
VER. 2017
