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Japan JIS SF55A 一般用途之碳鋼鍛鋼件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SF55A / SF 55 A
Category Grade Standard Region/Area Standard Content
Metals SF 55 A JIS G3201 Japan 一般用途之碳鋼鍛鋼件

Chemical composition(mass fraction)(wt.%) of the SF 55 A

Element Min Max Similar
Si 0.1500 0.5000 -
S - 0.0350 -
P - 0.0300 -
Mn 0.3000 1.2000 -
CEV - - -
C - 0.6000 -

Mechanical Properties of steel grade SF 55 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)
315 (≥) 971 (≥) 43 23 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade SF 55 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
34 - -     0.24 -  
389 232 - 44.3 244   -  
676 - 21 22.2   242 432

Heat Treatment of steel grade SF 55 A

Heat treated : 1752°C - 1919°C

Technological Curves of steel grade SF 55 A

Cross Reference Table (Equivalent Grade) of SF 55 A

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