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SN 490 YB

China CNS SN490YB 建筑结构用轧钢料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SN490YB / SN 490 YB
Category Grade Standard Region/Area Standard Content
Metals SN 490 YB CNS G 3262 China 建筑结构用轧钢料

Chemical composition(mass fraction)(wt.%) of the SN 490 YB

Element Min Max Similar
B - 0.0008 -
S - 0.0150 -
P - 0.0300 -
Mn - 1.6500 -
Si - 0.5500 -
C - 0.1800 -

Mechanical Properties of steel grade SN 490 YB

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)
281 (≥) 169 (≥) 22 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade SN 490 YB

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
33 - -     0.22 -  
639 943 - 34.3 123   -  
916 - 42 22.2   114 434

Heat Treatment of steel grade SN 490 YB

Heat treated : 1215°C - 1242°C

Technological Curves of steel grade SN 490 YB

Cross Reference Table (Equivalent Grade) of SN 490 YB

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