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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.
High-Speed Tool Steel

Steel Garde:M48
Type:Tool Die Steels
Country:USA
Standard:ASTM
Application:High-Speed Tool Steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
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	355～636	σb/MPa
Yield Strength	047	σ 0.2 ≥/MPa
Elongation	89	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	093～294	-
HRC	30	-

Physical Properties

Thermal expansion	53-17	e-6/K
Thermal conductivity	25-15	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7370-5611	째C
Density	6141-0183	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