ASTM HK40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM HK40

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AISI ASTM HK40

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This page is mainly introduced the ASTM HK40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM HK40,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ASTM HK40
  • Steel Garde:ASTM HK40
  • Type:Special Alloy
  • Country:USA
  • Standard:AISI
  • Application:

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 146~633 σb/MPa
Yield Strength 719 σ 0.2 ≥/MPa
Elongation 13 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 529~161 -
HRC 30 -

Physical Properties

Thermal expansion 83-96 e-6/K
Thermal conductivity 57-15 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9740-0222 째C
Density 0323-9189 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)
ASTM HK40 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