420J2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420J2

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CNS 420J2

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This page is mainly introduced the 420J2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420J2,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:420J2
  • Type:Stainless Steels
  • Country:China
  • Standard:CNS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 G3067 Stainless steel bars
    2 G3076 Stainless steel wires
    3 G3077 Stainless steel wire rods
  • Metallographic Structure:Martensite
  • Application:Stainless steel wire rods

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.26  0.40
Si   1.00
Mn   1.00
P   0.040
S   0.030
Ni   0.60
Cr 12.00  14.00
Mo  

Mechanical Properties

Tensile strength 308~208 σb/MPa
Yield Strength 760 σ 0.2 ≥/MPa
Elongation 14 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 752~583 -
HRC 30 -

Physical Properties

Thermal expansion 08-37 e-6/K
Thermal conductivity 94-35 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6693-5388 째C
Density 9205-1385 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)
420J2 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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