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C74GW-N-B

Japan JIS C74GW-N-B 铁路机车车辆 - 实心轮 - 第1部分:质量要求 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C74GW-N-B / C74GW-N-B
Category Grade Standard Region/Area Standard Content
Metals C74GW-N-B JIS E5402-1 Japan 铁路机车车辆 - 实心轮 - 第1部分:质量要求

Chemical composition(mass fraction)(wt.%) of the C74GW-N-B

Element Min Max Similar

Mechanical Properties of steel grade C74GW-N-B

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)
995 (≥) 949 (≥) 24 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade C74GW-N-B

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
44 - -     0.31 -  
478 716 - 23.3 332   -  
832 - 12 43.2   423 342

Heat Treatment of steel grade C74GW-N-B

Heat treated : 1954°C - 1321°C

Technological Curves of steel grade C74GW-N-B

Cross Reference Table (Equivalent Grade) of C74GW-N-B

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