250 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 250

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AS 250

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This page is mainly introduced the 250 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 250,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
250
  • Steel Garde:250
  • Type:Special Alloy
  • Country:Australia
  • Standard:AS
  • Application:Australia Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 670~981 σb/MPa
Yield Strength 451 σ 0.2 ≥/MPa
Elongation 97 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 590~449 -
HRC 30 -

Physical Properties

Thermal expansion 91-21 e-6/K
Thermal conductivity 66-30 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1233-8248 째C
Density 5611-0378 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)
250 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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