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China 舞钢Q/WTB WH1250D 重载矿车专用钢WH1250技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: WH1250D / WH1250D
Category Grade Standard Region/Area Standard Content
Metals WH1250D WYJ 121 China 重载矿车专用钢WH1250技术条件

Chemical composition(mass fraction)(wt.%) of the WH1250D

Element Min Max Similar
B - 0.0040 -
Mo - 0.4000 -
Cr - 0.4000 -
S - 0.0080 -
P - 0.0200 -
Mn - 1.6000 -
Si - 0.4000 -
C - 0.1600 -

Mechanical Properties of steel grade WH1250D

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)
437 (≥) 837 (≥) 44 41 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade WH1250D

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
23 - -     0.12 -  
999 516 - 34.3 244   -  
539 - 11 33.2   144 314

Heat Treatment of steel grade WH1250D

Heat treated : 1828°C - 1817°C

Technological Curves of steel grade WH1250D

Cross Reference Table (Equivalent Grade) of WH1250D

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