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Japan JIS SG255 气瓶的钢板,厚钢板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SG255 / SG255
Category Grade Standard Region/Area Standard Content
Metals SG255 JIS G3116 Japan 气瓶的钢板,厚钢板和钢带

Chemical composition(mass fraction)(wt.%) of the SG255

Element Min Max Similar

Mechanical Properties of steel grade SG255

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)
238 (≥) 176 (≥) 44 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade SG255

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
41 - -     0.42 -  
935 876 - 44.3 124   -  
442 - 44 12.2   414 212

Heat Treatment of steel grade SG255

Heat treated : 1399°C - 1979°C

Technological Curves of steel grade SG255

Cross Reference Table (Equivalent Grade) of SG255

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