8740 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 8740

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AS 8740

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This page is mainly introduced the 8740 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 8740,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
8740
  • Steel Garde:8740
  • Type:Special Alloy
  • Country:Australia
  • Standard:AS
  • Application:Australia Structural steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
8740H AS Australia

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 028~686 σb/MPa
Yield Strength 961 σ 0.2 ≥/MPa
Elongation 55 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 579~135 -
HRC 30 -

Physical Properties

Thermal expansion 06-15 e-6/K
Thermal conductivity 61-83 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1630-5874 째C
Density 9974-7971 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)
8740 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

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