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

Location » Home » Grades > Stainless Steels > CNS 321

CNS CNS 321

Profile

This page is mainly introduced the CNS 321 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CNS 321,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel wire rods
  • Steel Garde:CNS 321
  • Type:Stainless Steels
  • Country:China
  • Standard:CNS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 G3067 Stainless steel bars
    2 G3077 Stainless steel wire rods
    3 G3076 Stainless steel wires
  • Metallographic Structure:Austenite
  • Application:Stainless steel wire rods

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

Mechanical Properties

Tensile strength 829~876 σb/MPa
Yield Strength 340 σ 0.2 ≥/MPa
Elongation 77 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 855~676 -
HRC 30 -

Physical Properties

Thermal expansion 83-26 e-6/K
Thermal conductivity 25-34 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0262-1674 째C
Density 3788-6745 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)
CNS 321 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