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 676~935 σb/MPa
Yield Strength 366 σ 0.2 ≥/MPa
Elongation 97 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 510~305 -
HRC 30 -

Physical Properties

Thermal expansion 11-61 e-6/K
Thermal conductivity 77-05 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1742-5162 째C
Density 2847-2930 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