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M44 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M44

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ASTM M44

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This page is mainly introduced the M44 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M44,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
M44

Steel Garde:M44
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Molybdenum series High-speed tool steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SCM440H	CNS	China
SCM445H	CNS	China
SNCM447	CNS	China
SCM440	CNS	China
SCM445	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	649～945	σb/MPa
Yield Strength	745	σ 0.2 ≥/MPa
Elongation	71	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	738～779	-
HRC	30	-

Physical Properties

Thermal expansion	74-94	e-6/K
Thermal conductivity	50-40	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5858-2079	째C
Density	4703-2908	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)
M44 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