2099 ALUMINIUM - AMS 4287

2099 ALUMINIUM

2099 is an aluminium lithium alloy. The addition of lithium increases the strength modulus of the material while lowering its density. In T83 temper 2099 has high strength and excellent corrosion resistance with moderate fracture toughness

Density

2.63g/cm3

Typical Applications

Related Specifications

High Strength Applications

AMS 4287

Chemical Composition (Wt %)

	Cu	Li	Zn	Mg	Mn	Zr	Ti	Fe	Si	Be	Others (Each)	Others (Total)
Min	2.40	1.60	0.40	0.10	0.10	0.05	-	-	-	-	-	-
Max	3.00	2.00	1.00	0.50	0.50	0.12	0.10	0.07	0.05	0.0001	0.05	0.15

Typical Mechanical Properties

Section	0.2% Proof Stress	Tensile Strength ksi (MPa)	Elongation (%)	Reduction of area (%)	Hardness
0.5" - 0.999"	76 (525)	81 (560)	9	-	-
1" - 2.5"	83 (595)	83 (595)	9	-	-

Hardness after Heat Treatment

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