ASTM CN7M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM CN7M

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AISI ASTM CN7M

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This page is mainly introduced the ASTM CN7M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM CN7M,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ASTM CN7M
  • Steel Garde:ASTM CN7M
  • Type:Special Alloy
  • Country:USA
  • Standard:AISI
  • Application:

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 401~464 σb/MPa
Yield Strength 643 σ 0.2 ≥/MPa
Elongation 68 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 740~244 -
HRC 30 -

Physical Properties

Thermal expansion 89-57 e-6/K
Thermal conductivity 47-30 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3722-0388 째C
Density 7789-2566 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)
ASTM CN7M 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