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Description

China CNS SMA490CW China Taiwan Structural steel and SMA490CW Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: SMA490CW
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel SMA490CW CNS China China Taiwan Structural steel
SBV2
SBV3
SMA400AW
SMA400BW
SMA400CW
SMA400AP
SMA400BP
SMA400CP
SMA490AW
SMA490BW

Chemical composition(mass fraction)(wt.%) of the SMA490CW

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.18 0.15-0.65 1.4 0.035 0.035 0.45-0.75 Max 0.05-0.30 0.30-0.50

Mechanical Properties of steel grade SMA490CW

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)
767 (≥) 112 (≥) 44 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade SMA490CW

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
21 - -     0.41 -  
267 217 - 22.3 142   -  
916 - 32 44.2   311 433

Heat Treatment of steel grade SMA490CW

Heat treated : 1727°C - 1697°C

Technological Curves of steel grade SMA490CW

Cross Reference Table (Equivalent Grade) of SMA490CW

Grade Standard Country Application
SMA490CW CNS China China Taiwan Structural steel

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