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JDR 540-20

China YB JDR540-20 家用电器用热轧硅钢薄钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: JDR540-20 / JDR 540-20
Category Grade Standard Region/Area Standard Content
Metals JDR 540-20 YB/T 5287 China 家用电器用热轧硅钢薄钢板

Chemical composition(mass fraction)(wt.%) of the JDR 540-20

Element Min Max Similar

Mechanical Properties of steel grade JDR 540-20

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)
482 (≥) 485 (≥) 23 42 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade JDR 540-20

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
21 - -     0.32 -  
958 252 - 23.3 414   -  
638 - 42 41.2   234 212

Heat Treatment of steel grade JDR 540-20

Heat treated : 1681°C - 1128°C

Technological Curves of steel grade JDR 540-20

Cross Reference Table (Equivalent Grade) of JDR 540-20

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