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Description

Russia GOST 40X18H2M Specialsteel Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 40X18H2M
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 40X18H2M GOST Russia Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Chemical composition(mass fraction)(wt.%) of the 40X18H2M

C Si Mn P S Cr Ni Mo
0.35 -0.45 ≤0.50 0.60 -1.00 0.08 -0.15 0.15 -0.25 16.50 -18.50 1.70 -2.20 0.25 -0.40

Mechanical Properties of steel grade 40X18H2M

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
879 (≥) 286 (≥) 32 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade 40X18H2M

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
14 - -     0.43 -  
339 822 - 34.3 432   -  
249 - 24 33.2   114 211

Heat Treatment of steel grade 40X18H2M

Heat treated : 1142°C - 1116°C

Technological Curves of steel grade 40X18H2M


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