303S31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 303S31

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303S31

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This page is mainly introduced the 303S31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 303S31,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
303S31
  • Steel Garde:303S31
  • Type:Special Alloy
  • Country:UK
  • Application:austenitic special steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 294~964 σb/MPa
Yield Strength 175 σ 0.2 ≥/MPa
Elongation 38 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 926~166 -
HRC 30 -

Physical Properties

Thermal expansion 39-18 e-6/K
Thermal conductivity 71-49 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2285-1958 째C
Density 9550-8048 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)
303S31 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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