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SM490B

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SM490A SM490C
#SM490B

Description

China CNS SM490B China Taiwan Structural steel and SM490B Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: SM490B
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel SM490B CNS China China Taiwan Structural steel
SUJ4
SUJ5
SS34
SS400
SS490
SS540
SM400A
SM400B
SM400C
SM490A

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

C(％) Si(％) Mn(％) P(％) S(％)
Max 0.18 Max 0.55 Max 1.60 0.035 0.035

Mechanical Properties of steel grade SM490B

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)
663 (≥) 486 (≥) 44 32 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade SM490B

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
24 - -     0.33 -  
178 743 - 12.3 114   -  
119 - 32 14.2   331 421

Heat Treatment of steel grade SM490B

Heat treated : 1878°C - 1845°C

Technological Curves of steel grade SM490B

Cross Reference Table (Equivalent Grade) of SM490B

Grade Standard Country Application
SM490B CNS China China Taiwan Structural steel
SM490A SM490C
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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