M61 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M61

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SAE M61

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This page is mainly introduced the M61 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M61,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 1.75  1.85
Si 0.20  0.45
Mn 0.25  0.50
Cr 3.50  4.25
Mo 6.00  6.75
V 4.50  5.25
W 12.00  13.00
S 0.05  0.09

Mechanical Properties

Tensile strength 307~130 σb/MPa
Yield Strength 383 σ 0.2 ≥/MPa
Elongation 55 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 811~200 -
HRC 30 -

Physical Properties

Thermal expansion 87-52 e-6/K
Thermal conductivity 53-48 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1293-6756 째C
Density 0722-3978 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)
M61 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

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