G3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G3

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JIS G3

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This page is mainly introduced the G3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G3,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
G3
Hardness quartile HRA:90.5
Bending strength frequency/MPa:1750
  • Steel Garde:G3
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Carbide for cutting tools

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 813~095 σb/MPa
Yield Strength 278 σ 0.2 ≥/MPa
Elongation 10 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 217~231 -
HRC 30 -

Physical Properties

Thermal expansion 11-02 e-6/K
Thermal conductivity 30-15 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3134-7513 째C
Density 5531-6565 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)
G3 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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