Type440F chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Type440F

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UNS Type440F

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This page is mainly introduced the Type440F chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Type440F,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Type440F
  • Steel Garde:Type440F
  • Type:Special Alloy
  • Country:USA
  • Standard:UNS
  • Application:Martensitic special steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
Type440F UNS USA

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 324~440 σb/MPa
Yield Strength 961 σ 0.2 ≥/MPa
Elongation 64 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 961~499 -
HRC 30 -

Physical Properties

Thermal expansion 73-39 e-6/K
Thermal conductivity 55-98 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5429-5736 째C
Density 5113-6048 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)
Type440F 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