8Χ3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 8Χ3

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ГОСТ 8Χ3

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This page is mainly introduced the 8Χ3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 8Χ3,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
  • Steel Garde:8Χ3
  • Type:Special Alloy
  • Country:Russia
  • Standard:ГОСТ
  • Application:Carbide for cutting tools

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 779~419 σb/MPa
Yield Strength 519 σ 0.2 ≥/MPa
Elongation 36 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 776~226 -
HRC 30 -

Physical Properties

Thermal expansion 40-65 e-6/K
Thermal conductivity 82-14 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3758-9219 째C
Density 3793-5165 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)
8Χ3 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