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SM400A

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SS540 SM400B
#SM400A

Description

China CNS SM400A China Taiwan Structural steel and SM400A Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: SM400A
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel SM400A CNS China China Taiwan Structural steel
SUP13
SUJ1
SUJ2
SUJ3
SUJ4
SUJ5
SS34
SS400
SS490
SS540

Chemical composition(mass fraction)(wt.%) of the SM400A

C(％) Si(％) Mn(％) P(％) S(％)
Max 0.23 — ≥2.5XC 0.035 0.035

Mechanical Properties of steel grade SM400A

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)
172 (≥) 526 (≥) 31 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade SM400A

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
22 - -     0.42 -  
943 153 - 41.3 222   -  
161 - 11 23.2   424 431

Heat Treatment of steel grade SM400A

Heat treated : 1629°C - 1987°C

Technological Curves of steel grade SM400A

Cross Reference Table (Equivalent Grade) of SM400A

Grade Standard Country Application
SM400A CNS China China Taiwan Structural steel
SS540 SM400B
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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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