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

JIS SUS 309STP

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

Cross Reference Table(Equivalent Materials):

Material Standard Country
SUS 309STP Y JIS Japan

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   1.00
Mn   2.00
P   0.04
S   0.03
Cr 2.00  24.00
Ni 12.00  15.00
Mo  

Mechanical Properties

Tensile strength 412~698 σb/MPa
Yield Strength 002 σ 0.2 ≥/MPa
Elongation 91 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 165~225 -
HRC 30 -

Physical Properties

Thermal expansion 18-73 e-6/K
Thermal conductivity 98-25 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1504-0676 째C
Density 5057-1217 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 309STP 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