1.1179 (C30R)

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, % Cr, % Ni, % P, % C, % S, % Mo, %
EN 10083-1 97.485–99.21 < 0.4 0.5–0.8 < 0.4 < 0.4 < 0.035 0.27–0.34 0.02–0.04 < 0.1

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
< 16 600–750 > 400 < 18 < 40 < 40 After hardening and tempering
17–40 550–700 > 350 < 20 < 45 < 40 After hardening and tempering
41–100 500–650 > 300 < 21 < 50 < 40 After hardening and tempering

Brinell hardness number

Rolling Standard Classifiers Value, HBW
soft, annealing < 170

Standards

Standard Description
EN 10083-1

Description of chemical elements

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