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M61 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M61

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SAE M61

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This page is mainly introduced the M61 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M61,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:M61
Type:Tool Die Steels
Country:USA
Standard:SAE
Application:High-Speed Tool Steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	1.75	1.85
Si	0.20	0.45
Mn	0.25	0.50
Cr	3.50	4.25
Mo	6.00	6.75
V	4.50	5.25
W	12.00	13.00
S	0.05	0.09

Mechanical Properties

Tensile strength	889～730	σb/MPa
Yield Strength	336	σ 0.2 ≥/MPa
Elongation	70	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	900～574	-
HRC	30	-

Physical Properties

Thermal expansion	54-34	e-6/K
Thermal conductivity	55-68	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2021-8496	째C
Density	9071-5283	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)
M61 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