1.3818 (X55MnCrN18-4)
Classification
| Country |
Section |
Category |
| Germany |
Alloy Miscellaneous Steels |
Materials with Special Physical Properties without Ni |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Ni, % |
P, % |
C, % |
S, % |
N, % |
|---|
| SEW390 |
72.19–77.95 |
< 1 |
17.5–20 |
4–5 |
< 1 |
< 0.06 |
0.5–0.6 |
< 0.03 |
0.05–0.12 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$E\cdot 10^{9}$$, $$MPa$$ |
$$\alpha\cdot 10^{6}$$, $$K^{-1}$$ |
$$\rho$$, $$\frac{kg}{m^3}$$ |
$$R\cdot 10^{-6}$$, $$\Omega\cdot m$$ |
|---|
| 20 |
190 |
|
7800 |
0.75 |
| 100 |
|
16.5 |
|
|
| 200 |
|
18.3 |
|
|
| 300 |
|
19.4 |
|
|
| 400 |
|
20.3 |
|
|
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Ni |
% |
Nickel |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
| N |
% |
Nitrogen |
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) |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
The density of the material |
| $$R\cdot 10^{-6}$$ |
$$\Omega\cdot m$$ |
Electrical resistivity |