1.6738 (40NiCrMo186)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels Cr-Ni-Mo with Mo <0.4% + 3.5% =< Ni < 5%, or Mo>= 0.4%

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % P, % C, % S, % Mo, %
91.345–93.3 0.1–0.4 0.2–0.55 1.4–1.7 4.3–4.9 < 0.03 0.35–0.45 < 0.025 0.35–0.6

Information on suppliers

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