1.7182 (27MnCrB5-2)

Classification

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

Chemical composition

Standard Fe, % Si, % B, % Mn, % Cr, % P, % C, % S, %
EN 10083-3 97.235–98.3592 < 0.4 0.0008–0.005 1.1–1.4 0.3–0.6 < 0.025 0.24–0.3 < 0.035

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_{L (L_0 = 5.65\sqrt{S_o})}$$, % $$R_{eH}$$, $$MPa$$ $$\psi$$, % Treatment
< 16 moderate hardening 1000–1250 14 800 55
16–40 moderate hardening 900–1150 14 750 55
40–100 moderate hardening 800–1000 15 700 55

Standards

Standard Description
EN 10083-3

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
B % Bor
Mn % Manganese
Cr % Chrome
P % Phosphorus
C % Carbon
S % Sulfur

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_{L (L_0 = 5.65\sqrt{S_o})}$$ % Elongation at break (longitudinal) (for L0 = 5.65√So)
$$R_{eH}$$ $$MPa$$ Upper yield point
$$\psi$$ % Reduction in cross section on fracture