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 472~446 σb/MPa
Yield Strength 653 σ 0.2 ≥/MPa
Elongation 89 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 650~689 -
HRC 30 -

Physical Properties

Thermal expansion 83-21 e-6/K
Thermal conductivity 82-13 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2989-5491 째C
Density 7063-6768 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