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Np-40H3G2MF

Russia GOST Np-40H3G2MF Steel surfacing wire. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Np-40H3G2MF / Np-40H3G2MF
Category Grade Standard Region/Area Standard Content
Metals Np-40H3G2MF GOST 10543 Russia Steel surfacing wire. Specifications

Chemical composition(mass fraction)(wt.%) of the Np-40H3G2MF

Element Min Max Similar
V 0.1000 0.2000 -
Si 0.4000 0.7000 -
S - 0.0350 -
P - 0.0350 -
Ni - 0.4000 -
Mo 0.3000 0.5000 -
Mn 1.3000 1.8000 -
Cr 3.3000 3.8000 -
C 0.3500 0.4500 -

Mechanical Properties of steel grade Np-40H3G2MF

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)
628 (≥) 933 (≥) 44 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade Np-40H3G2MF

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 - -     0.32 -  
879 995 - 22.3 141   -  
783 - 12 43.2   123 431

Heat Treatment of steel grade Np-40H3G2MF

Heat treated : 1678°C - 1517°C

Technological Curves of steel grade Np-40H3G2MF

Cross Reference Table (Equivalent Grade) of Np-40H3G2MF

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