10H18N18YU4D (EP841)
rollers slot furnaces, covers thermocouples, heat exchangers and others. parts, long operating at temperatures up to 1100 degrees.
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Heat resistant steels and alloys |
Heat resistant high alloy steel |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Cu, % |
Ni, % |
Al, % |
Ce, % |
P, % |
C, % |
S, % |
|---|
| GOST 5632-72 |
54.385–60.33 |
< 0.8 |
< 0.8 |
18–19.5 |
0.4–0.6 |
18–19.5 |
3.2–4.2 |
< 0.03 |
< 0.035 |
0.07–0.13 |
< 0.02 |
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 |
186 |
|
|
7630 |
| 100 |
182 |
15.5 |
12.4 |
|
| 200 |
178 |
16.5 |
13.4 |
|
| 300 |
171 |
17 |
15.4 |
|
| 400 |
165 |
17.4 |
17.1 |
|
| 500 |
161 |
17.65 |
18.4 |
|
| 600 |
156 |
18.2 |
20.5 |
|
| 700 |
146 |
18.4 |
21.7 |
|
| 800 |
138 |
18.8 |
23 |
|
| 900 |
127 |
18.6 |
|
|
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{P}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$\psi$$, % |
Treatment |
|---|
| Sheet |
|
4–11 |
Transverse |
|
500 |
|
40 |
|
Heat 1080 ° C, air cooling |
| Rod |
|
40 |
Longitudinal |
|
600 |
340 |
28 |
35 |
Heating of 1130-1150 ° C, air cooling |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Cu |
% |
Copper |
| Ni |
% |
Nickel |
| Al |
% |
Aluminium |
| Ce |
% |
Cerium |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
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 |