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G8

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G8 G10E
#G8

Description

Japan JIS G8 Carbide for cutting tools and G8 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: G8
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy G8 JIS Japan Carbide for cutting tools
G2
G2
G3
G3
G5
G6
G6
G7
G7
G8

Chemical composition(mass fraction)(wt.%) of the G8

W(%) Other(%)
75 Co+Ni:25

Mechanical Properties of steel grade G8

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
226 (≥) 233 (≥) 41 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade G8

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
32 - -     0.11 -  
421 867 - 32.3 442   -  
923 - 42 21.2   221 112

Heat Treatment of steel grade G8

Heat treated : 1248°C - 1169°C

Technological Curves of steel grade G8

Cross Reference Table (Equivalent Grade) of G8

Grade Standard Country Application
YG8A China Hard alloy tungsten cobalt class
G8 JIS Japan Carbide for cutting tools
G8 JIS Japan Carbide for cutting tools
ASTM CG8M AISI USA
CG8M ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
CG8M ASTM USA Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
G8 G10E
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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