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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 is 25.08.87. For the period until 25.03.92.

Agreed: Developed:

AGREED:

Chief Metallurgist
enterprises

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. 299

on changes in material standards for the product 459, 459M, 4594, 494B, 494B1, 494SI, 459MI, 459ME, 494SA

BASIS 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