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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	330～992	σb/MPa
Yield Strength	642	σ 0.2 ≥/MPa
Elongation	20	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	264～479	-
HRC	30	-

Physical Properties

Thermal expansion	23-72	e-6/K
Thermal conductivity	48-42	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9214-7724	째C
Density	5386-4358	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