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GC74GW-T-B

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

Element Min Max Similar

Mechanical Properties of steel grade GC74GW-T-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)
185 (≥) 666 (≥) 12 12 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade GC74GW-T-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
13 - -     0.21 -  
715 566 - 24.3 144   -  
366 - 32 42.2   342 124

Heat Treatment of steel grade GC74GW-T-B

Heat treated : 1337°C - 1267°C

Technological Curves of steel grade GC74GW-T-B

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

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