1.7701 (52CrMoV4)

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % V, % P, % C, % S, % Mo, %
EN 10089 96.19–97.67 < 0.4 0.7–1.1 0.9–1.2 0.1–0.2 < 0.025 0.48–0.56 < 0.025 0.15–0.3

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
1400–1700 > 1200 < 6 < 30 > 14 Tempering 830-860 in oil. Vacation 430-500 in the air

Brinell hardness number

Rolling Standard Classifiers Value, HBW
improved machinability 280
annealing, soft 248
annealing, carbide spheroidization 230

Standards

Standard Description
EN 10089

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
V % Vanadium
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