SUS 321 HTP chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 321 HTP

JIS SUS 321 HTP

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This page is mainly introduced the SUS 321 HTP chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 321 HTP,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel pipes

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 17.00  19.00
Ni 9.00  13.00
Mo  
N  
Ti 5×C% 

Mechanical Properties

Tensile strength 418~773 σb/MPa
Yield Strength 129 σ 0.2 ≥/MPa
Elongation 61 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 462~622 -
HRC 30 -

Physical Properties

Thermal expansion 24-71 e-6/K
Thermal conductivity 23-60 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4453-2186 째C
Density 0509-0710 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 321 HTP 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