SUS440F chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS440F

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JIS SUS440F

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This page is mainly introduced the SUS440F chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS440F,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SUS440F
  • Steel Garde:SUS440F
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Martensitic special steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 723~538 σb/MPa
Yield Strength 039 σ 0.2 ≥/MPa
Elongation 46 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 521~235 -
HRC 30 -

Physical Properties

Thermal expansion 13-23 e-6/K
Thermal conductivity 88-69 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5757-3591 째C
Density 4627-9017 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)
SUS440F 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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