1.7272 (31CrMoB2-1)
Classification
| Country |
Section |
Category |
| Germany |
Structural, Pressure Vessel and Engineering Steels |
Cr-Mo with Mo < 0.35%, Cr-Mo-B |
Chemical composition
| Standard |
Fe, % |
Si, % |
B, % |
Mn, % |
Cr, % |
Cu, % |
P, % |
C, % |
S, % |
Mo, % |
|---|
| EN 10263-4 |
97.165–98.3192 |
< 0.3 |
0.0008–0.005 |
0.9–1.2 |
0.4–0.55 |
< 0.25 |
< 0.025 |
0.28–0.33 |
< 0.025 |
0.1–0.15 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\psi$$, % |
Treatment |
|---|
|
|
|
|
|
550–690 |
56–63 |
|
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| B |
% |
Bor |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Cu |
% |
Copper |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
| Mo |
% |
Molybdenum |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\psi$$ |
% |
Reduction in cross section on fracture |