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China 首钢Q/SG SS490 结构用热连轧钢板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SS490 / SS490
Category Grade Standard Region/Area Standard Content
Metals SS490 Q/SGZGS 316 China 结构用热连轧钢板和钢带

Chemical composition(mass fraction)(wt.%) of the SS490

Element Min Max Similar
C - 0.2000 -
Si - 0.3500 -
Mn - 1.6000 -
P - 0.0350 -
S - 0.0350 -
Cu - 0.3000 -
Cr - 0.3000 -
Ni - 0.3000 -
N - 0.0150 -

Mechanical Properties of steel grade SS490

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)
169 (≥) 492 (≥) 21 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade SS490

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
42 - -     0.44 -  
825 248 - 13.3 143   -  
313 - 11 21.2   411 134

Heat Treatment of steel grade SS490

Heat treated : 1329°C - 1269°C

Technological Curves of steel grade SS490

Cross Reference Table (Equivalent Grade) of SS490

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