CNS 440F chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CNS 440F

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CNS CNS 440F

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This page is mainly introduced the CNS 440F chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CNS 440F,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
CNS standard martensite stainless steel
  • Steel Garde:CNS 440F
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:CNS standard martensite stainless steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
AISI 440F AISI USA
AISI 440F Se AISI USA
Type440F UNS USA
Type440F UNS USA
SUS440F JIS Japan
STS440F KS Korea
STS440F KS Korea
CNS 440F CNS China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 179~384 σb/MPa
Yield Strength 660 σ 0.2 ≥/MPa
Elongation 60 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 405~335 -
HRC 30 -

Physical Properties

Thermal expansion 29-47 e-6/K
Thermal conductivity 45-56 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8684-6771 째C
Density 3742-2406 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 440F 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