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SPFC 780 Y

Japan JIS SPFC780Y 改进汽车结构用加工性热轧高强度薄板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SPFC780Y / SPFC 780 Y
Category Grade Standard Region/Area Standard Content
Metals SPFC 780 Y JIS G3135 Japan 改进汽车结构用加工性热轧高强度薄板和钢带

Chemical composition(mass fraction)(wt.%) of the SPFC 780 Y

Element Min Max Similar

Mechanical Properties of steel grade SPFC 780 Y

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)
185 (≥) 671 (≥) 34 13 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade SPFC 780 Y

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
43 - -     0.11 -  
776 336 - 12.3 212   -  
791 - 33 24.2   144 222

Heat Treatment of steel grade SPFC 780 Y

Heat treated : 1628°C - 1633°C

Technological Curves of steel grade SPFC 780 Y

Cross Reference Table (Equivalent Grade) of SPFC 780 Y

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