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 543~317 σb/MPa
Yield Strength 091 σ 0.2 ≥/MPa
Elongation 68 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 108~942 -
HRC 30 -

Physical Properties

Thermal expansion 68-02 e-6/K
Thermal conductivity 54-75 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4685-9546 째C
Density 5188-8512 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