1.7767 (12CrMoV12-10)

Classification

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

Chemical composition

Standard Fe, % Si, % B, % Ca, % Mn, % Cr, % Ti, % Cu, % Ni, % V, % P, % C, % S, % Nb, % Mo, % N, %
EN 10028-2 93.8–95.75 < 0.15 < 0.003 < 0.015 0.3–0.6 2.75–3.25 < 0.03 < 0.25 < 0.25 0.2–0.3 < 0.015 0.1–0.15 < 0.005 < 0.07 0.9–1.1 < 0.012

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ $$\epsilon_L$$, % $$KV_{T}$$, $$J$$ Treatment
< 60 600–780 455 18
60–150 590–770 435
150–250 580–760 415
Hardening, normalization 27

Standards

Standard Description
EN 10028-2

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
B % Bor
Ca % Calcium
Mn % Manganese
Cr % Chrome
Ti % Titan
Cu % Copper
Ni % Nickel
V % Vanadium
P % Phosphorus
C % Carbon
S % Sulfur
Nb % Niobium
Mo % Molybdenum
N % Nitrogen

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)
$$KV_{T}$$ $$J$$ Impact energy (transverse)
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