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SSW-Q2R Class 2

Japan JIS SSW-Q2RClass2 铁路机车车辆的固体冷轧碳钢车轮 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SSW-Q2RClass2 / SSW-Q2R Class 2
Category Grade Standard Region/Area Standard Content
Metals SSW-Q2R Class 2 JIS E5402 Japan 铁路机车车辆的固体冷轧碳钢车轮

Chemical composition(mass fraction)(wt.%) of the SSW-Q2R Class 2

Element Min Max Similar
V - 0.0500 -
Si 0.1300 0.3800 -
S - 0.0600 -
P - 0.0550 -
Ni - 0.2800 -
Mo - 0.0800 -
Mn 0.4600 0.9400 -
Cu - 0.2800 -
Cr - 0.2800 -
C 0.5700 0.8000 -

Mechanical Properties of steel grade SSW-Q2R Class 2

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)
752 (≥) 781 (≥) 22 33 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade SSW-Q2R Class 2

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 - -     0.22 -  
365 617 - 14.3 131   -  
123 - 43 23.2   312 224

Heat Treatment of steel grade SSW-Q2R Class 2

Heat treated : 1644°C - 1733°C

Technological Curves of steel grade SSW-Q2R Class 2

Cross Reference Table (Equivalent Grade) of SSW-Q2R Class 2

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