SNCM420 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SNCM420

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CNS SNCM420

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This page is mainly introduced the SNCM420 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SNCM420,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SNCM420
  • Steel Garde:SNCM420
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:China Taiwan Structural steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
SNCM420H CNS China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 343~793 σb/MPa
Yield Strength 349 σ 0.2 ≥/MPa
Elongation 60 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 166~968 -
HRC 30 -

Physical Properties

Thermal expansion 69-26 e-6/K
Thermal conductivity 14-46 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4196-4588 째C
Density 2971-4203 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)
SNCM420 Special Alloy 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