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M43 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M43

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ASTM M43

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This page is mainly introduced the M43 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M43,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
M43

Steel Garde:M43
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Molybdenum series High-speed tool steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SCM435H	CNS	China
SUM43	CNS	China
SNCM431	CNS	China
SNCM439	CNS	China
SCM430	CNS	China
SCM432	CNS	China
SCM435	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	493～239	σb/MPa
Yield Strength	584	σ 0.2 ≥/MPa
Elongation	18	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	088～852	-
HRC	30	-

Physical Properties

Thermal expansion	52-44	e-6/K
Thermal conductivity	83-15	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0643-9735	째C
Density	3241-2224	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)
M43 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