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M15 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M15

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SAE M15

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This page is mainly introduced the M15 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M15,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:M15
Type:Tool Die Steels
Country:USA
Standard:SAE
Application:High-Speed Tool Steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	1.50	1.60
Si	0.20	0.40
Mn	0.10	0.40
Cr	4.00	4.75
Mo	3.00	3.50
V	4.75	5.25
W	6.25	6.75
Co	4.75	5.25

Mechanical Properties

Tensile strength	465～957	σb/MPa
Yield Strength	121	σ 0.2 ≥/MPa
Elongation	79	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	417～266	-
HRC	30	-

Physical Properties

Thermal expansion	30-22	e-6/K
Thermal conductivity	30-20	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8243-1652	째C
Density	1304-1265	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)
M15 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