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

JIS SUS 321 TKA

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This page is mainly introduced the SUS 321 TKA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 321 TKA,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel pipes for machine and structural purposes
  • Steel Garde:SUS 321 TKA
  • Type:Stainless Steels
  • Country:Japan
  • Standard:JIS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 G 3446 (2012) Stainless steel pipes for machine and structural purposes
  • Metallographic Structure:Austenite
  • Application:Stainless steel pipes for machine and structural purposes

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 025~606 σb/MPa
Yield Strength 208 σ 0.2 ≥/MPa
Elongation 28 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 431~108 -
HRC 30 -

Physical Properties

Thermal expansion 21-19 e-6/K
Thermal conductivity 09-35 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5315-6427 째C
Density 5810-8894 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 TKA 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