GGG-NiCrNb20-2

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#GGG-NiCrNb20-2

Description

GGG-NiCrNb20-2 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: GGG-NiCrNb20-2

Category	Type	Steel Grade
Steel Grades	Mould Steel	GGG-NiCrNb20-2
		GGL-NiCr20-3
		0.6661
		GGL-NiSiCr20-5-3
		0.6667
		GGL-NiCr30-3
		0.6676
		GGL-NiSiCr30-5-5
		0.6680
		GGG-NiMn13-7
		0.7652

Chemical composition(mass fraction)(wt.%) of the GGG-NiCrNb20-2

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
3.0	1.5-2.4	0.5-1.5	0.04		1.5-2.5	18.0-22.0
Mo	Al	Cu	Nb	Ti	V	Ce
			0.1-0.2
N	Co	Pb	B	Other
				Mg≤0.08

Mechanical Properties of steel grade GGG-NiCrNb20-2

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)
874 (≥)	848 (≥)	21	41	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	233

Physical Properties of steel grade GGG-NiCrNb20-2

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	-	-			0.14	-
537	837	-	14.3	443		-
449	-	23	34.2			433	223

Heat Treatment of steel grade GGG-NiCrNb20-2

Heat treated : 1273°C - 1852°C

Technological Curves of steel grade GGG-NiCrNb20-2

No Curve

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