1.4424 (X2CrNiMoSi18-5-3)
Classification
| Country |
Section |
Category |
| Germany |
Stainless and Heat Resisting Steels |
Stainless Steel with Ni > = 2.5% with Mo but without Nb and Ti |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Ni, % |
P, % |
C, % |
S, % |
Mo, % |
N, % |
|---|
|
68.62–72.35 |
1.4–2 |
1.2–2 |
18–19 |
4.5–5.2 |
< 0.035 |
< 0.03 |
< 0.015 |
2.5–3 |
0.05–0.1 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{0.2}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$KV_{L}$$, $$J$$ |
Treatment |
|---|
|
|
|
|
annealing, soft |
680–900 |
400–450 |
25 |
|
|
|
|
|
|
solution annealing |
700–900 |
480 |
30 |
|
|
|
|
|
|
|
|
|
|
100 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
|
|
annealing, soft |
260 |
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 |
| Mo |
% |
Molybdenum |
| N |
% |
Nitrogen |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma_{0.2}$$ |
$$MPa$$ |
Tensile stress required to produce a total elongation of 0.2% |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\epsilon_L$$ |
% |
Elongation at break (longitudinal) |
| $$KV_{L}$$ |
$$J$$ |
Impact energy (longitudinal) |