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Japan JIS SFB7 锻件用碳素钢锭和钢坯 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SFB7 / SFB 7
Category Grade Standard Region/Area Standard Content
Metals SFB 7 JIS G3251 Japan 锻件用碳素钢锭和钢坯

Chemical composition(mass fraction)(wt.%) of the SFB 7

Element Min Max Similar

Mechanical Properties of steel grade SFB 7

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)
271 (≥) 796 (≥) 14 33 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade SFB 7

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 - -     0.11 -  
279 453 - 24.3 414   -  
262 - 31 34.2   244 233

Heat Treatment of steel grade SFB 7

Heat treated : 1635°C - 1275°C

Technological Curves of steel grade SFB 7

Cross Reference Table (Equivalent Grade) of SFB 7

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