18-18-2

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#18-18-2

Description

18-18-2 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: 18-18-2

Category	Type	Steel Grade
Steel Grades	High Alloy	18-18-2
		17-14 CuMo
		17-22-A
		17-22-AS
		17-22-AV
		18-2Mn
		18-3Mn
		18-4Mn
		18-9LW
		18-15
		18-17LC

Chemical composition(mass fraction)(wt.%) of the 18-18-2

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.08	1.50-2.50	2.00			17.0-19.0	17.5-18.5
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade 18-18-2

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)
136 (≥)	965 (≥)	12	44	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	132

Physical Properties of steel grade 18-18-2

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
12	-	-			0.12	-
646	196	-	32.3	123		-
633	-	23	34.2			131	334

Heat Treatment of steel grade 18-18-2

Heat treated : 1258°C - 1358°C

Technological Curves of steel grade 18-18-2

No Curve

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