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SM490B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM490B

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CNS SM490B

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This page is mainly introduced the SM490B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM490B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SM490B

Steel Garde:SM490B
Type:Special Alloy
Country:China
Standard:CNS
Application:China Taiwan Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	049～071	σb/MPa
Yield Strength	082	σ 0.2 ≥/MPa
Elongation	40	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	560～809	-
HRC	30	-

Physical Properties

Thermal expansion	84-28	e-6/K
Thermal conductivity	07-92	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4248-6453	째C
Density	4573-8897	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)
SM490B 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