G8

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Description

G8 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: G8

Category	Type	Steel Grade
Steel Grades	Tool Steel	G8
		A1
		A40
		CC
		F0
		F1
		G2
		G3
		G5
		G6
		G7

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

WC ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Co+Ni
75						25
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade G8

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
832 (≥)	179 (≥)	22	22	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	424

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
21	-	-			0.44	-
623	845	-	22.3	423		-
657	-	44	22.2			121	211

Heat Treatment of steel grade G8

Heat treated : 1742°C - 1984°C

Technological Curves of steel grade G8

No Curve

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

Available Suppliers

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...

Rfq.: sales@longhaisteel.com

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G8