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

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

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

Element Min Max Similar

Mechanical Properties of steel grade Np-40G

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)
872 (≥) 428 (≥) 22 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade Np-40G

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
31 - -     0.13 -  
463 847 - 44.3 241   -  
673 - 32 12.2   333 122

Heat Treatment of steel grade Np-40G

Heat treated : 1958°C - 1886°C

Technological Curves of steel grade Np-40G

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

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