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 303~883 σb/MPa
Yield Strength 555 σ 0.2 ≥/MPa
Elongation 94 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 678~323 -
HRC 30 -

Physical Properties

Thermal expansion 67-08 e-6/K
Thermal conductivity 21-54 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2771-9298 째C
Density 2888-2459 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

Technical specification/standard for download