SUS440C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS440C

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JIS SUS440C

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This page is mainly introduced the SUS440C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS440C,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SUS440C
  • Steel Garde:SUS440C
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Martensitic special steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 260~536 σb/MPa
Yield Strength 101 σ 0.2 ≥/MPa
Elongation 19 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 550~039 -
HRC 30 -

Physical Properties

Thermal expansion 58-89 e-6/K
Thermal conductivity 96-41 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2223-3606 째C
Density 3228-1131 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

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Size Availability

Steel Grade Specification Processing range(mm)
SUS440C 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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