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M47 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M47

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ASTM M47

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This page is mainly introduced the M47 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M47,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:M47
Type:Tool Die Steels
Country:USA
Standard:ASTM
Application:High-Speed Tool Steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	1.05	1.15
Si	0.20	0.45
Mn	0.15	0.40
P		0.030
S		0.030
Cr	3.50	4.00
Mo	9.25	10.00
V	1.15	1.35
W	1.30	1.80
Co	4.75	5.25

Mechanical Properties

Tensile strength	119～679	σb/MPa
Yield Strength	368	σ 0.2 ≥/MPa
Elongation	04	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	207～874	-
HRC	30	-

Physical Properties

Thermal expansion	36-67	e-6/K
Thermal conductivity	73-50	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8036-6719	째C
Density	2644-2179	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)
M47 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