G18NiMoCr3-7

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#G18NiMoCr3-7

Description

G18NiMoCr3-7 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: G18NiMoCr3-7

Category	Type	Steel Grade
Steel Grades	Mould Steel	G18NiMoCr3-7
		G20NiMoCr4
		1.6750
		GS-20NiMoCr3-7
		1.6750
		G18NiMoCr3-6
		1.6759
		GS-18NiMoCr3-6
		1.6759
		GS-22NiMoCr5-6
		1.6760

Chemical composition(mass fraction)(wt.%) of the G18NiMoCr3-7

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.22	0.30-0.50	0.70-1.10	0.012	0.010	0.30-0.50	0.60-1.10
Mo	Al	Cu	Nb	Ti	V	Ce
0.40-0.60	0.02-0.05	≤ 0.12			≤ 0.02
N	Co	Pb	B	Other
≤ 0.015				As ≤ 0.025 Sn ≤ 0.011

Mechanical Properties of steel grade G18NiMoCr3-7

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)
461 (≥)	852 (≥)	34	11	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	213

Physical Properties of steel grade G18NiMoCr3-7

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
33	-	-			0.34	-
659	222	-	11.3	123		-
511	-	32	24.2			433	342

Heat Treatment of steel grade G18NiMoCr3-7

Heat treated : 1284°C - 1146°C

Technological Curves of steel grade G18NiMoCr3-7

No Curve

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