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Japan JIS SFB4 锻件用碳素钢锭和钢坯 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SFB4 / SFB 4
Category Grade Standard Region/Area Standard Content
Metals SFB 4 JIS G3251 Japan 锻件用碳素钢锭和钢坯

Chemical composition(mass fraction)(wt.%) of the SFB 4

Element Min Max Similar
Si 0.1500 0.5000 -
S - 0.0350 -
P - 0.0300 -
Mn 0.4000 1.2000 -
CEV - - -
C 0.2000 0.3800 -

Mechanical Properties of steel grade SFB 4

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)
518 (≥) 518 (≥) 43 23 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade SFB 4

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 - -     0.13 -  
164 379 - 21.3 214   -  
793 - 11 14.2   413 131

Heat Treatment of steel grade SFB 4

Heat treated : 1596°C - 1664°C

Technological Curves of steel grade SFB 4

Cross Reference Table (Equivalent Grade) of SFB 4

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