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DR1250G-20

China GB DR1250G-20 电工用热轧硅钢薄钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: DR1250G-20 / DR1250G-20
Category Grade Standard Region/Area Standard Content
Metals DR1250G-20 GB 5212 China 电工用热轧硅钢薄钢板

Chemical composition(mass fraction)(wt.%) of the DR1250G-20

Element Min Max Similar

Mechanical Properties of steel grade DR1250G-20

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)
743 (≥) 491 (≥) 12 41 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade DR1250G-20

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 - -     0.31 -  
689 162 - 24.3 413   -  
728 - 11 32.2   222 124

Heat Treatment of steel grade DR1250G-20

Heat treated : 1152°C - 1723°C

Technological Curves of steel grade DR1250G-20

Cross Reference Table (Equivalent Grade) of DR1250G-20

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