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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	952～389	σb/MPa
Yield Strength	604	σ 0.2 ≥/MPa
Elongation	83	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	751～574	-
HRC	30	-

Physical Properties

Thermal expansion	01-42	e-6/K
Thermal conductivity	82-43	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2150-6433	째C
Density	4387-3836	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