STS321FB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS321FB

KS STS321FB

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This page is mainly introduced the STS321FB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS321FB,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel blooms and billets for forgings
  • Steel Garde:STS321FB
  • Type:Stainless Steels
  • Country:Korea
  • Standard:KS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 D 3691 (2001) Stainless steel blooms and billets for forgings
  • Metallographic Structure:Austenite
  • Application:Stainless steel blooms and billets for forgings

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   1.00
Mn   2.00
P   0.045
S   0.030
Cr 17.00  19.00
Ni 9.00  13.00
Mo  
N  
Ti 5×C% 

Mechanical Properties

Tensile strength 274~800 σb/MPa
Yield Strength 973 σ 0.2 ≥/MPa
Elongation 13 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 970~243 -
HRC 30 -

Physical Properties

Thermal expansion 22-36 e-6/K
Thermal conductivity 56-69 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0096-1243 째C
Density 1168-2267 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)
STS321FB 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