M46 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M46

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ASTM M46

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This page is mainly introduced the M46 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M46,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 1.22  1.30
Si 0.40  0.65
Mn 0.20  0.40
P   0.030
S   0.030
Cr 3.70  4.20
Mo 8.00  8.50
V 3.00  3.30
W 1.90  2.20
Co 7.80  8.80

Mechanical Properties

Tensile strength 287~175 σb/MPa
Yield Strength 662 σ 0.2 ≥/MPa
Elongation 34 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 526~117 -
HRC 30 -

Physical Properties

Thermal expansion 45-85 e-6/K
Thermal conductivity 48-38 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2377-1885 째C
Density 1846-3186 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)
M46 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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