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

Standard Description
EN 10297-1

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)