M3 Class1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M3 Class1

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ASTM M3 Class1

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This page is mainly introduced the M3 Class1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M3 Class1,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
M3 Class1
  • Steel Garde:M3 Class1
  • Type:Special Alloy
  • Country:USA
  • Standard:ASTM
  • Application:Molybdenum series High-speed tool steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 311~229 σb/MPa
Yield Strength 207 σ 0.2 ≥/MPa
Elongation 58 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 742~515 -
HRC 30 -

Physical Properties

Thermal expansion 58-71 e-6/K
Thermal conductivity 36-85 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4979-9216 째C
Density 7252-2048 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 Class1 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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