CNS 309S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CNS 309S

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CNS CNS 309S

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This page is mainly introduced the CNS 309S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CNS 309S,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
CNS standard stainless steel austenite size
  • Steel Garde:CNS 309S
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:CNS standard stainless steel austenite size

Cross Reference Table(Equivalent Materials):

Material Standard Country
309S24 UK
309S20 UK
STS309S KS Korea
CNS 309S CNS China
CNS 309S CNS China
CNS 309S CNS China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 427~019 σb/MPa
Yield Strength 182 σ 0.2 ≥/MPa
Elongation 86 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 509~656 -
HRC 30 -

Physical Properties

Thermal expansion 04-53 e-6/K
Thermal conductivity 40-36 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2816-9910 째C
Density 6515-7231 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 309S 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