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Nw-40 Ch 2 G 2 MF

Bulgaria BDS Nw-40Ch2G2MF Welding. Steel wire built-up welding and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Nw-40Ch2G2MF / Nw-40 Ch 2 G 2 MF
Category Grade Standard Region/Area Standard Content
Metals Nw-40 Ch 2 G 2 MF BDS 14679 Bulgaria Welding. Steel wire built-up welding

Chemical composition(mass fraction)(wt.%) of the Nw-40 Ch 2 G 2 MF

Element Min Max Similar
V 0.1000 0.2000 -
Si 0.4000 0.7000 -
S - 0.0400 -
P - 0.0400 -
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 Nw-40 Ch 2 G 2 MF

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)
211 (≥) 182 (≥) 44 13 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade Nw-40 Ch 2 G 2 MF

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
33 - -     0.41 -  
171 238 - 13.3 114   -  
164 - 12 44.2   123 444

Heat Treatment of steel grade Nw-40 Ch 2 G 2 MF

Heat treated : 1733°C - 1174°C

Technological Curves of steel grade Nw-40 Ch 2 G 2 MF

Cross Reference Table (Equivalent Grade) of Nw-40 Ch 2 G 2 MF

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