SUJ4

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#SUJ4

Description

SUJ4 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SUJ4

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SUJ4
		S55C-CSP
		S60C-CSP
		S65C-CSP
		S70C-CSP
		SK85-CSP
		SK55-CSP
		SUP10-CSP
		SUJ2
		SUJ3
		SUJ3

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

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.95-1.1	0.15-0.35	0.5	0.025	0.025	1.3-1.6	≤0.25
Mo	Al	Cu	Nb	Ti	V	Ce
0.1-0.25		≤0.25
N	Co	Pb	B	Other

Mechanical Properties of steel grade SUJ4

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
621 (≥)	952 (≥)	32	21	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	144

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
32	-	-			0.21	-
819	511	-	31.3	423		-
984	-	32	41.2			233	312

Heat Treatment of steel grade SUJ4

Heat treated : 1576°C - 1336°C

Technological Curves of steel grade SUJ4

No Curve

Cross Reference Table (Equivalent Grade) of SUJ4

Grade	Standard	Country	Application
SUJ4		China	China Taiwan Structural steel

Available Suppliers

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...

Rfq.: sales@longhaisteel.com

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