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M3 Class2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M3 Class2

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ASTM M3 Class2

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This page is mainly introduced the M3 Class2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M3 Class2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
M3 Class2

Steel Garde:M3 Class2
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Molybdenum series High-speed tool steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	824～423	σb/MPa
Yield Strength	284	σ 0.2 ≥/MPa
Elongation	76	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	293～771	-
HRC	30	-

Physical Properties

Thermal expansion	43-27	e-6/K
Thermal conductivity	16-74	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8795-4422	째C
Density	3887-9527	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)
M3 Class2 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