1.1273 (90Mn4)

Classification

Country Section Category
Germany Non-alloy Special Steels Structural Pressure Vessel and Engineering Steels with C > = 0,5%

Chemical composition

Standard Fe, % Si, % Mn, % P, % C, % S, %
97.38–98 0.25–0.5 0.9–1.1 < 0.035 0.85–0.95 < 0.035

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
< 16 < 1670 > 1375 < 5 After hardening and tempering
17–40 < 1670 > 1325 < 5 After hardening and tempering
41–100 < 1670 > 1275 < 5 After hardening and tempering

Brinell hardness number

Rolling Standard Classifiers Value, HBW
soft, annealing < 350

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
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)