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Japan JIS SNCM439 镍铬钼钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SNCM439 / SNCM 439
Category Grade Standard Region/Area Standard Content
Metals SNCM 439 JIS G4103 Japan 镍铬钼钢

Chemical composition(mass fraction)(wt.%) of the SNCM 439

Element Min Max Similar

Mechanical Properties of steel grade SNCM 439

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)
681 (≥) 398 (≥) 14 42 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade SNCM 439

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
42 - -     0.21 -  
325 159 - 44.3 432   -  
643 - 42 42.2   241 132

Heat Treatment of steel grade SNCM 439

Heat treated : 1584°C - 1137°C

Technological Curves of steel grade SNCM 439

Cross Reference Table (Equivalent Grade) of SNCM 439

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