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SUJ4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUJ4

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CNS SUJ4

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This page is mainly introduced the SUJ4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUJ4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SUJ4

Steel Garde:SUJ4
Type:Special Alloy
Country:China
Standard:CNS
Application:China Taiwan Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	325～129	σb/MPa
Yield Strength	719	σ 0.2 ≥/MPa
Elongation	86	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	286～236	-
HRC	30	-

Physical Properties

Thermal expansion	56-70	e-6/K
Thermal conductivity	43-01	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8923-9626	째C
Density	2485-4281	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
SUJ4 Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk