SUS431FB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS431FB

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JIS SUS431FB

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This page is mainly introduced the SUS431FB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS431FB,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
  • Steel Garde:SUS431FB
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:martensitic stainless steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 753~443 σb/MPa
Yield Strength 970 σ 0.2 ≥/MPa
Elongation 66 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 754~704 -
HRC 30 -

Physical Properties

Thermal expansion 30-42 e-6/K
Thermal conductivity 35-68 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5685-4118 째C
Density 6329-8780 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)
SUS431FB 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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