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SMA 490 BW

Japan JIS SMA490BW 热轧耐大气腐蚀的焊接结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SMA490BW / SMA 490 BW
Category Grade Standard Region/Area Standard Content
Metals SMA 490 BW JIS G3114 Japan 热轧耐大气腐蚀的焊接结构钢

Chemical composition(mass fraction)(wt.%) of the SMA 490 BW

Element Min Max Similar
Si 0.1500 0.6500 -
S - 0.0350 -
P - 0.0350 -
Other - - -
Ni 0.0500 0.3000 -
Mn - 1.4000 -
Cu 0.3000 0.5000 -
Cr 0.4500 0.7500 -
CEV - 0.4100 -
C - 0.1800 -

Mechanical Properties of steel grade SMA 490 BW

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)
688 (≥) 597 (≥) 31 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade SMA 490 BW

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
14 - -     0.12 -  
534 711 - 43.3 434   -  
568 - 43 34.2   143 143

Heat Treatment of steel grade SMA 490 BW

Heat treated : 1236°C - 1162°C

Technological Curves of steel grade SMA 490 BW

Cross Reference Table (Equivalent Grade) of SMA 490 BW

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