AISI 440A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI 440A

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AISI AISI 440A

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This page is mainly introduced the AISI 440A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI 440A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
AISI 440A
  • Steel Garde:AISI 440A
  • Type:Special Alloy
  • Country:China
  • Standard:AISI
  • Application:Martensitic special steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 470~530 σb/MPa
Yield Strength 629 σ 0.2 ≥/MPa
Elongation 78 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 408~799 -
HRC 30 -

Physical Properties

Thermal expansion 16-71 e-6/K
Thermal conductivity 00-54 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6965-1908 째C
Density 3732-2841 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)
AISI 440A 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