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Japan JIS SF340A 一般用途之碳鋼鍛鋼件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SF340A / SF 340 A
Category Grade Standard Region/Area Standard Content
Metals SF 340 A JIS G3201 Japan 一般用途之碳鋼鍛鋼件

Chemical composition(mass fraction)(wt.%) of the SF 340 A

Element Min Max Similar

Mechanical Properties of steel grade SF 340 A

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)
658 (≥) 361 (≥) 41 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade SF 340 A

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
22 - -     0.21 -  
838 414 - 32.3 422   -  
513 - 22 13.2   143 313

Heat Treatment of steel grade SF 340 A

Heat treated : 1966°C - 1679°C

Technological Curves of steel grade SF 340 A

Cross Reference Table (Equivalent Grade) of SF 340 A

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