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GC74GW-N-B

Japan JIS GC74GW-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: GC74GW-N-B / GC74GW-N-B
Category Grade Standard Region/Area Standard Content
Metals GC74GW-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 GC74GW-N-B

Element Min Max Similar

Mechanical Properties of steel grade GC74GW-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)
867 (≥) 937 (≥) 22 33 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade GC74GW-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
42 - -     0.33 -  
149 227 - 22.3 421   -  
621 - 21 33.2   223 142

Heat Treatment of steel grade GC74GW-N-B

Heat treated : 1294°C - 1254°C

Technological Curves of steel grade GC74GW-N-B

Cross Reference Table (Equivalent Grade) of GC74GW-N-B

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