M3 Class2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M3 Class2

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ASTM M3 Class2

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This page is mainly introduced the M3 Class2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M3 Class2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
M3 Class2
  • Steel Garde:M3 Class2
  • Type:Special Alloy
  • Country:USA
  • Standard:ASTM
  • Application:Molybdenum series High-speed tool steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 792~125 σb/MPa
Yield Strength 538 σ 0.2 ≥/MPa
Elongation 93 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 777~832 -
HRC 30 -

Physical Properties

Thermal expansion 07-89 e-6/K
Thermal conductivity 53-70 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8354-5429 째C
Density 6047-5141 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)
M3 Class2 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

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