G8MnMo7-4

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#G8MnMo7-4

Description

G8MnMo7-4 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: G8MnMo7-4

Category	Type	Steel Grade
Steel Grades	Mould Steel	G8MnMo7-4
		GS-46MnSi4
		1.5121
		G38MnSi4
		1.5123
		G37MnSi5
		1.5124
		GS-20MoV8-4
		1.5406
		G18Mo5
		1.5422

Chemical composition(mass fraction)(wt.%) of the G8MnMo7-4

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.06-0.10	0.60	1.50-1.80	0.020	0.015	≤ 0.20
Mo	Al	Cu	Nb	Ti	V	Ce
0.30-0.40			≤ 0.05		≤ 0.10
N	Co	Pb	B	Other
≤ 0.02

Mechanical Properties of steel grade G8MnMo7-4

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)
693 (≥)	238 (≥)	44	13	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	422

Physical Properties of steel grade G8MnMo7-4

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
12	-	-			0.42	-
625	868	-	34.3	311		-
863	-	14	13.2			112	222

Heat Treatment of steel grade G8MnMo7-4

Heat treated : 1578°C - 1112°C

Technological Curves of steel grade G8MnMo7-4

No Curve

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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