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Japan JIS SPFH540 改进汽车结构用加工性热轧高强度钢板,薄板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SPFH540 / SPFH 540
Category Grade Standard Region/Area Standard Content
Metals SPFH 540 JIS G3134 Japan 改进汽车结构用加工性热轧高强度钢板,薄板和钢带

Chemical composition(mass fraction)(wt.%) of the SPFH 540

Element Min Max Similar

Mechanical Properties of steel grade SPFH 540

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)
672 (≥) 763 (≥) 41 11 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade SPFH 540

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 - -     0.41 -  
686 741 - 13.3 224   -  
917 - 41 11.2   413 234

Heat Treatment of steel grade SPFH 540

Heat treated : 1442°C - 1389°C

Technological Curves of steel grade SPFH 540

Cross Reference Table (Equivalent Grade) of SPFH 540

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