1.7021 (32CrS2)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels Cr, Cr-B

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % P, % C, % S, %
97.775–98.8 < 0.4 0.5–0.8 0.4–0.6 < 0.035 0.28–0.35 0.02–0.04

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ $$\epsilon_L$$, % $$\psi$$, % $$KU$$, $$J$$ Treatment
< 16 700–850 > 450 < 15 < 40 < 35 After hardening and tempering
17–40 600–750 > 350 < 15 < 45 < 35 After hardening and tempering
41–100 500–650 > 300 < 17 < 50 < 35 After hardening and tempering

Brinell hardness number

Rolling Standard Classifiers Value, HBW
soft, annealing < 197

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
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)
$$\psi$$ % Reduction in cross section on fracture
$$KU$$ $$J$$ Impact energy