G7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G7

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JIS G7

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This page is mainly introduced the G7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of G7,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
G7
Hardness quartile HRA:85.5
Bending strength frequency/MPa:2500
  • Steel Garde:G7
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material Standard Country
G7 JIS Japan
EN 2CSG7 EN Euronorm

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 640~660 σb/MPa
Yield Strength 737 σ 0.2 ≥/MPa
Elongation 49 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 343~183 -
HRC 30 -

Physical Properties

Thermal expansion 01-61 e-6/K
Thermal conductivity 95-74 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7230-5492 째C
Density 6881-3684 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)
G7 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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