SUS 303 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 303

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JIS SUS 303

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This page is mainly introduced the SUS 303 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 303,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Cold finished stainless steel bars

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.15
Si   1.00
Mn   2.00
P   0.20
S   0.15
Cr 17.00  19.00
Ni 8.00  10.00
Mo   0.60
N  

Mechanical Properties

Tensile strength 157~414 σb/MPa
Yield Strength 842 σ 0.2 ≥/MPa
Elongation 21 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 173~872 -
HRC 30 -

Physical Properties

Thermal expansion 94-33 e-6/K
Thermal conductivity 57-45 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5862-5670 째C
Density 0387-7214 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 303 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