0.6680

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#0.6680

Description

0.6680 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 0.6680

Category	Type	Steel Grade
Steel Grades	Mould Steel	0.6680
		0.6656
		GGL-NiCr20-2
		0.6660
		GGL-NiCr20-3
		0.6661
		GGL-NiSiCr20-5-3
		0.6667
		GGL-NiCr30-3
		0.6676
		GGL-NiSiCr30-5-5

Chemical composition(mass fraction)(wt.%) of the 0.6680

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
2.5	5.0-6.0	0.5-1.5			4.5-5.5	29.0-32.0
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade 0.6680

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)
232 (≥)	978 (≥)	21	23	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	342

Physical Properties of steel grade 0.6680

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
44	-	-			0.22	-
845	745	-	22.3	324		-
343	-	32	33.2			122	133

Heat Treatment of steel grade 0.6680

Heat treated : 1514°C - 1643°C

Technological Curves of steel grade 0.6680

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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