CPM Rex 20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CPM Rex 20

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AISI CPM Rex 20

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This page is mainly introduced the CPM Rex 20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of CPM Rex 20,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
CPM Rex 20
  • Steel Garde:CPM Rex 20
  • Type:Special Alloy
  • Country:USA
  • Standard:AISI
  • Application:Powder metallurgy high-speed tool steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 897~433 σb/MPa
Yield Strength 868 σ 0.2 ≥/MPa
Elongation 29 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 586~348 -
HRC 30 -

Physical Properties

Thermal expansion 17-50 e-6/K
Thermal conductivity 29-46 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5158-9389 째C
Density 8714-1929 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)
CPM Rex 20 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