1.7216 (30CrMo4)
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, % |
Mn, % |
Cr, % |
P, % |
C, % |
S, % |
Mo, % |
EN 10297-1 |
97.19–98.33 |
< 0.35 |
0.35–0.6 |
0.9–1.15 |
< 0.035 |
0.27–0.34 |
< 0.035 |
0.15–0.3 |
Information on suppliers
Mechanical properties at 20 °C
Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{Y}$$, $$MPa$$ |
$$\epsilon_L$$, % |
$$KV_{L}$$, $$J$$ |
$$KV_{T}$$, $$J$$ |
Treatment |
|
|
< 8 |
|
moderate hardening |
950 |
750 |
12 |
40–45 |
27 |
|
|
|
8–20 |
|
moderate hardening |
850 |
630 |
13 |
|
|
|
|
|
20–50 |
|
moderate hardening |
750 |
520 |
14 |
|
|
|
|
|
50–80 |
|
moderate hardening |
700 |
480 |
15 |
|
|
|
Brinell hardness number
Rolling |
Standard |
Classifiers |
Value, HBW |
|
|
annealing, soft |
223 |
Standards
Description of chemical elements
Element |
Units of measurement |
Description |
Fe |
% |
Iron |
Si |
% |
Silicon |
Mn |
% |
Manganese |
Cr |
% |
Chrome |
P |
% |
Phosphorus |
C |
% |
Carbon |
S |
% |
Sulfur |
Mo |
% |
Molybdenum |
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) |
$$KV_{L}$$ |
$$J$$ |
Impact energy (longitudinal) |
$$KV_{T}$$ |
$$J$$ |
Impact energy (transverse) |