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

JIS SUS 321HFB

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This page is mainly introduced the SUS 321HFB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 321HFB,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:SUS 321HFB
  • Type:Stainless Steels
  • Country:Japan
  • Standard:JIS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 G 4319 (1991) 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 0.04  0.10
Si   1.00
Mn   2.00
P   0.045
S   0.03
Cr 17.00  20.00
Ni 9.00  13.00
Mo  
Ti 4×C%  0.60

Mechanical Properties

Tensile strength 804~823 σb/MPa
Yield Strength 679 σ 0.2 ≥/MPa
Elongation 34 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 723~005 -
HRC 30 -

Physical Properties

Thermal expansion 79-26 e-6/K
Thermal conductivity 50-54 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5437-1126 째C
Density 4999-2663 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 321HFB 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

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