X9940 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X9940

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AS X9940

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This page is mainly introduced the X9940 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X9940,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
X9940
  • Steel Garde:X9940
  • Type:Special Alloy
  • Country:Australia
  • Standard:AS
  • Application:Australia Structural steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
X9940 AS Australia

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 659~432 σb/MPa
Yield Strength 177 σ 0.2 ≥/MPa
Elongation 31 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 765~920 -
HRC 30 -

Physical Properties

Thermal expansion 78-37 e-6/K
Thermal conductivity 12-87 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5932-8541 째C
Density 4618-4100 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)
X9940 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