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.
M48
  • Steel Garde:M48
  • Type:Special Alloy
  • Country:USA
  • Standard:ASTM
  • Application:Molybdenum series High-speed tool steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
SM50 China
SM48 China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 331~169 σb/MPa
Yield Strength 796 σ 0.2 ≥/MPa
Elongation 40 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 319~269 -
HRC 30 -

Physical Properties

Thermal expansion 90-95 e-6/K
Thermal conductivity 92-62 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2100-8179 째C
Density 8939-0306 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 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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