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SPFC 340 H

Japan JIS SPFC340H 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: SPFC340H / SPFC 340 H
Category Grade Standard Region/Area Standard Content
Metals SPFC 340 H 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 340 H

Element Min Max Similar

Mechanical Properties of steel grade SPFC 340 H

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)
863 (≥) 651 (≥) 33 12 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade SPFC 340 H

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
23 - -     0.32 -  
682 678 - 42.3 224   -  
324 - 13 41.2   321 334

Heat Treatment of steel grade SPFC 340 H

Heat treated : 1715°C - 1668°C

Technological Curves of steel grade SPFC 340 H

Cross Reference Table (Equivalent Grade) of SPFC 340 H

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