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China 宝钢Q/BQB B30G140 全工艺冷轧取向电工钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B30G140 / B30G140
Category Grade Standard Region/Area Standard Content
Metals B30G140 Q/BQB 485 China 全工艺冷轧取向电工钢带

Chemical composition(mass fraction)(wt.%) of the B30G140

Element Min Max Similar

Mechanical Properties of steel grade B30G140

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)
591 (≥) 458 (≥) 33 33 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade B30G140

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
44 - -     0.42 -  
315 515 - 42.3 443   -  
365 - 23 11.2   432 414

Heat Treatment of steel grade B30G140

Heat treated : 1615°C - 1121°C

Technological Curves of steel grade B30G140

Cross Reference Table (Equivalent Grade) of B30G140

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