08H15N24V4TR (EP164, X15H24V4T)
Work and guide vanes, fasteners, gas turbine disks.
working and guide blades, fasteners, drives a gas turbine with a long service life at a temperature of 650−700 degrees.; austenitic steel
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Heat resistant steels and alloys |
Heat resistant high alloy steel |
Chemical composition
| Standard |
Fe, % |
Si, % |
B, % |
Mn, % |
Cr, % |
Ti, % |
Ni, % |
Ce, % |
P, % |
C, % |
S, % |
W, % |
|---|
| GOST 5632-72 |
50.435–58.1 |
< 0.6 |
< 0.005 |
0.5–1 |
14–16 |
1.4–1.8 |
22–25 |
< 0.025 |
< 0.035 |
< 0.08 |
< 0.02 |
4–5 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$E\cdot 10^{9}$$, $$MPa$$ |
$$\alpha\cdot 10^{6}$$, $$K^{-1}$$ |
$$\varkappa$$, $$\frac{W}{m\cdot K}$$ |
$$\rho$$, $$\frac{kg}{m^3}$$ |
|---|
| 20 |
223 |
|
12.2 |
8230 |
| 100 |
215 |
14.5 |
|
|
| 200 |
209 |
15.5 |
|
|
| 300 |
200 |
16.3 |
|
|
| 400 |
191 |
16.8 |
|
|
| 500 |
182 |
17.2 |
|
|
| 600 |
|
17.4 |
|
|
| 650 |
169 |
17.5 |
|
|
| 700 |
165 |
17.8 |
|
|
| 750 |
161 |
17.9 |
|
|
| 800 |
156 |
|
|
|
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{P}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$\psi$$, % |
$$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ |
Treatment |
|---|
| Rod |
|
|
|
|
750 |
450 |
18 |
35 |
800 |
Hardening of 1130-1150 ° C, 2 hours, air cooling, aging of 730-750 ° C, 16 hours, air cooled |
| Rod |
|
|
|
|
750 |
500 |
20 |
30 |
1200 |
Accommodation 700 ° C, 16 hours, air cooled |
Technological Properties
| Weldability |
|---|
| Difficult to weld |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| B |
% |
Bor |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Ti |
% |
Titan |
| Ni |
% |
Nickel |
| Ce |
% |
Cerium |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
| W |
% |
Tungsten |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$E\cdot 10^{9}$$ |
$$MPa$$ |
Elastic modulus |
| $$\alpha\cdot 10^{6}$$ |
$$K^{-1}$$ |
Coefficient of thermal (linear) expansion (range 20°C–T) |
| $$\varkappa$$ |
$$\frac{W}{m\cdot K}$$ |
Coefficient of thermal conductivity (the heat capacity of the material) |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
The density of the material |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\sigma_{P}$$ |
$$MPa$$ |
Proportionality limit |
| $$\epsilon_L$$ |
% |
Elongation at break (longitudinal) |
| $$\psi$$ |
% |
Reduction in cross section on fracture |
| $$KCU\cdot 10^{3}$$ |
$$\frac{J}{m^2}$$ |
Impact toughness |
Designation of types of weldability
| Parameter |
Units of measurement |
Description |
| no limits |
|
Welding is performed without heating and without subsequent heat treatment |
| Boundedly welded |
|
Welding is possible with heating up to 100–120 °C and subsequent heat treatment |
| Difficult to weld |
|
For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing |
| Not applicable for welded structures |
|
|