1.7379 (G17CrMo9-10)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels Cr-Mo with Mo ≥ 0.35%

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % V, % P, % C, % S, % Mo, %
93.81–96.47 < 0.6 0.5–0.9 2–2.5 < 0.3 < 0.4 < 0.05 < 0.02 0.13–0.2 < 0.02 0.9–1.2

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers σU, MPa σ0.2, MPa ϵL, % KVL, J Treatment
moderate hardening 590–740 400 18 40

Standards

Standard Description
EN 10213-2
SEW520

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Cu % Copper
Ni % Nickel
V % Vanadium
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum

Description of mechanical properties

Parameter Units of measurement Description
σ0.2 MPa Tensile stress required to produce a total elongation of 0.2%
σU MPa Ultimate tensile strength
ϵL % Elongation at break (longitudinal)
KVL J Impact energy (longitudinal)