Alloy ХН65ВМТЮ (ЭИ893)

Designation

Name The value
Designation GOST Cyrillic ХН65ВМТЮ
Designation GOST Latin XH65BMTJu
Transliteration HN65VMTYu
By chemical elements CrNi65ВCuTeAl
Name The value
Designation GOST Cyrillic ЭИ893
Designation GOST Latin EI893
Transliteration EhI893
By chemical elements -

Description

Alloy ХН65ВМТЮ used: for the manufacture of blades and vanes, and fasteners gas turbines.

Note

High-temperature Nickel-based alloy.
The recommended maximum operating temperature for limited time +800 °C. the Temperature of beginning of intensive scaling in air to +1000 °C.

Standards

Name Code Standards
Bars and shapes В32 GOST 23705-79, TU 14-1-2481-78, TU 14-1-322-72, TU 14-11-245-88, TU 1-809-541-95
Classification, nomenclature and General rules В30 GOST 5632-72
Blanks. Of the workpiece. Slabs В31 OST 3-1686-90
Processing of metals by pressure. Forgings В03 TU 108.02.9082-83

Chemical composition

Standard C S P Mn Cr Si Ni Cu Al B Ti Mo W Ce
GOST 5632-72 ≤0.05 0.012 ≤0.015 ≤0.5 15-17 ≤0.6 Rest ≤0.3 1.2-1.6 ≤0.01 1.2-1.6 3.5-4.5 8.5-10 ≤0.025
Ni is the basis.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
Bars hot rolled and forged and according to GOST 23705-79. Hardening in air, 1010-1030 °C (exposure 1.5 h) + Heating to 1150-1170 °C (exposure 2 hours), air cooling, heating to 990-1010 °C (exposure 4 h), air cooling, heating to 890-910 °C (exposure 8 h), air cooling, heating to 810-830 °C (extract 15 h), air cooling
≥490 ≥830 ≥20 ≥22 ≥588
- ≥640 ≥20 ≥20 -
Bars hot rolled and forged and according to GOST 23705-79. Hardening in air, 1160-1180 °C (exposure 2 hours) + Aging at 770-790 °C (exposure 12 h), air cooling
490-735 880-1100 20-44 25-40 588-1275
470-590 690-840 15-25 15-30 784-1569
440-590 590-820 16-30 17-40 784-1569
Bars hot rolled and forged and according to GOST 23705-79. Hardening in air, 1160-1180 °C (extract 2 h) + Step-aging at 990-1010 °C (exposure 4 h), cooling with the furnace, 890-910 °C (exposure 8 h), cooled with the furnace, 840-860 °C (extract 15 h), air cooling
490-540 880-940 20-40 25-31 588-735
390-450 690-740 15-31 15-32 -
350-450 570-620 18-33 23-37 -

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
KCU Toughness

Physical characteristics

Temperature Е, HPa r, kg/m3 l, W/(m · °C) a, 10-6 1/°C
20 222 8800 127 -
100 214 - - 115
200 210 - 13 -
300 202 - 138 123
400 195 - 155 1275
500 190 - 172 13
600 184 - 197 132
700 174 - 236 14
800 165 - 272 143
900 160 - - 15

A description of the physical symbols

Name Description
Е The normal elasticity modulus
r Density
l Coefficient of thermal conductivity
R UD. the resistivity

Technological properties

Name The value
Weldability Difficult weldability.