1.0987 (S550NC)
Classification
| Country |
Section |
Category |
| Germany |
Alloy Steels |
Steels for Other Applications |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Al, % |
P, % |
C, % |
S, % |
|---|
|
> 97.515 |
< 0.6 |
< 1.55 |
< 0.025 |
< 0.035 |
< 0.24 |
< 0.035 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{Y}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$KV_{T}$$, $$J$$ |
Treatment |
|---|
|
|
|
|
|
600–750 |
> 540 |
> 16 |
> 28 |
Stress relief 0.5 hours 530/580 ° С. Normalization 1 max. 2 minutes. At mm thickness of 920/950 ° C (usually lowered). |
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Al |
% |
Aluminium |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma_{Y}$$ |
$$MPa$$ |
Yield strength |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\epsilon_L$$ |
% |
Elongation at break (longitudinal) |
| $$KV_{T}$$ |
$$J$$ |
Impact energy (transverse) |