CNS 631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CNS 631

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CNS CNS 631

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This page is mainly introduced the CNS 631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CNS 631,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
CNS standard precipitation hardening stainless steel
  • Steel Garde:CNS 631
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:CNS standard precipitation hardening stainless steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 134~513 σb/MPa
Yield Strength 478 σ 0.2 ≥/MPa
Elongation 88 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 567~375 -
HRC 30 -

Physical Properties

Thermal expansion 52-42 e-6/K
Thermal conductivity 44-89 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7136-6924 째C
Density 0253-3108 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)
CNS 631 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