SN490B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SN490B

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CNS SN490B

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This page is mainly introduced the SN490B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SN490B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SN490B
  • Steel Garde:SN490B
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:China Taiwan Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 815~879 σb/MPa
Yield Strength 009 σ 0.2 ≥/MPa
Elongation 44 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 025~004 -
HRC 30 -

Physical Properties

Thermal expansion 97-42 e-6/K
Thermal conductivity 63-04 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6240-8466 째C
Density 1654-3172 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)
SN490B 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

Technical specification/standard for download

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