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

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ASTM M3

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This page is mainly introduced the M3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M3,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
High-Speed Tool Steel

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.15  1.25
Si 0.20  0.45
Mn 0.15  0.40
P   0.030
S   0.030
Cr 3.75  4.50
Mo 4.75  6.50
V 2.75  3.25
W 5.00  6.75
Co  

Mechanical Properties

Tensile strength 560~506 σb/MPa
Yield Strength 155 σ 0.2 ≥/MPa
Elongation 73 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 337~968 -
HRC 30 -

Physical Properties

Thermal expansion 92-12 e-6/K
Thermal conductivity 18-91 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0613-9865 째C
Density 1591-2599 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 Tool Die Steels 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

Hot keywords:M3-Class2
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