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SUJ4

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SUJ3 SUJ5
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Description

China CNS SUJ4 China Taiwan Structural steel and SUJ4 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: SUJ4
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel SUJ4 CNS China China Taiwan Structural steel
SUP7
SUP9
SUP9A
SUP10
SUP11A
SUP12
SUP13
SUJ1
SUJ2
SUJ3

Chemical composition(mass fraction)(wt.%) of the SUJ4

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％)
0.95-1.10 0.15-0.35 Max 0.50 0.025 0.025 1.30-1.60 0.10-0.25

Mechanical Properties of steel grade SUJ4

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)
569 (≥) 963 (≥) 44 43 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade SUJ4

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
12 - -     0.31 -  
881 596 - 21.3 432   -  
183 - 41 22.2   211 243

Heat Treatment of steel grade SUJ4

Heat treated : 1951°C - 1848°C

Technological Curves of steel grade SUJ4

Cross Reference Table (Equivalent Grade) of SUJ4

Grade Standard Country Application
SUJ4 CNS China China Taiwan Structural steel
SUJ3 SUJ5
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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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