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

JIS SUS 309S

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This page is mainly introduced the SUS 309S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 309S,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel wire rods

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   1.00
Mn   2.00
P   0.045
S   0.03
Cr 22.00  24.00
Ni 12.00  15.00
Mo  
N  

Mechanical Properties

Tensile strength 232~757 σb/MPa
Yield Strength 321 σ 0.2 ≥/MPa
Elongation 45 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 897~379 -
HRC 30 -

Physical Properties

Thermal expansion 69-94 e-6/K
Thermal conductivity 56-37 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7631-4007 째C
Density 1914-5839 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)
SUS 309S Stainless Steels 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