M48 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M48

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ASTM M48

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This page is mainly introduced the M48 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M48,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 1.42  1.52
Si 0.15  0.40
Mn 0.15  0.40
P   0.030
S   0.070
Cr 3.50  4.00
Mo 4.75  5.50
V 2.75  3.25
W 9.50  10.50
Co 8.00  10.00

Mechanical Properties

Tensile strength 311~811 σb/MPa
Yield Strength 799 σ 0.2 ≥/MPa
Elongation 34 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 633~551 -
HRC 30 -

Physical Properties

Thermal expansion 73-35 e-6/K
Thermal conductivity 00-99 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1061-5376 째C
Density 1177-7865 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)
M48 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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