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China 武钢Q/WG 70WK380 电磁开关用冷轧电工钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 70WK380 / 70WK380
Category Grade Standard Region/Area Standard Content
Metals 70WK380 Q/WG(GG)03 China 电磁开关用冷轧电工钢带

Chemical composition(mass fraction)(wt.%) of the 70WK380

Element Min Max Similar

Mechanical Properties of steel grade 70WK380

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)
724 (≥) 699 (≥) 14 31 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade 70WK380

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
11 - -     0.42 -  
362 737 - 34.3 243   -  
562 - 33 14.2   341 242

Heat Treatment of steel grade 70WK380

Heat treated : 1227°C - 1514°C

Technological Curves of steel grade 70WK380

Cross Reference Table (Equivalent Grade) of 70WK380

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