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China 鞍钢Q/ASB SM490B-1 普通碳素结构钢和低合金结构钢钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SM490B-1 / SM490B-1
Category Grade Standard Region/Area Standard Content
Metals SM490B-1 Q/ASB 320 China 普通碳素结构钢和低合金结构钢钢板

Chemical composition(mass fraction)(wt.%) of the SM490B-1

Element Min Max Similar
Cu - 0.2000 -
Nb 0.0100 0.0100 -
Ni - 0.1500 -
Cr - 0.1500 -
P - 0.0250 -
S - 0.0150 -
Mn 1.2000 1.6000 -
Si 0.2000 0.5500 -
C 0.1200 0.1800 -

Mechanical Properties of steel grade SM490B-1

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)
574 (≥) 358 (≥) 23 21 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade SM490B-1

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
43 - -     0.22 -  
325 648 - 11.3 313   -  
223 - 32 13.2   332 434

Heat Treatment of steel grade SM490B-1

Heat treated : 1169°C - 1179°C

Technological Curves of steel grade SM490B-1

Cross Reference Table (Equivalent Grade) of SM490B-1

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