LM1775 Aluminum Lithium (Al-Li) Alloy 8090

Catalog No.	LM1775
Surface	Polished
Thickness	1-20 mm
Width	100-450 mm
Diameter	φ80-φ200

Aluminum Lithium (Al-Li) Alloy 8090 is an alternative to 2014 and 2024. Stanford Advanced Material provides standard and other customized sizes Aluminum-Lithium alloy rolled plate/ingot. Our products have reached the standard for supply to the institute of the military.

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Description

Specification

Aluminum Lithium (Al-Li) Alloy 8090 Description

Aluminum Lithium (Al-Li) Alloy 8090 is an alternative to 2014 and 2024. It is a medium-strength aluminum-lithium alloy with excellent mechanical properties. Density is reduced by 10% when matched against comparable alloys, and elastic modulus is increased by approximately 11%.

Lithium is the lightest metal element in the world. The addition of lithium to aluminum reduces the specific gravity of the alloy and increases the stiffness while still maintaining high strength, good corrosion resistance and fatigue resistance, and suitable ductility.

Lithium reduces density and increases stiffness when alloyed with aluminum. With proper alloy design, aluminum-lithium alloys can have exceptional combinations of strength and toughness.

Al-Li-alloy Al-lithium-ingot

Aluminum Lithium (Al-Li) Alloy 8090 Specifications

Metal Mechanic Property

Item#	Density, p/gcm3	Temper	Tensile Strength Rm/MPa	Yield Strength Rpo2/Mpa	Specific elongation, A/%	Fracture toughness KIC/MPa	Elasticity mdulus E/GPa
8090	2.55	T8	460	380	4	26		77.0

Metal Composition

Item#	Al	Li	Cu	Mg	Zr	Ag	Zn	Mn	Others
8090	Bal.	2.4	3	2	0.12	-	-	-	-

Metal Mechanic Property

Item#	E/Gpa	Rm/Mpa	Rpo2/Mpa	A/%	r/g cm-3
8090	79	550	512	46.4	2.54

Specifications for Delivery

type	cast ingot	rolled plate
Al-Li alloy	φ80-φ200mm	thickness:1-20mm width:100-450mm
Al-Li intermediate alloy	Li:5%-30%	-

Aluminum Lithium (Al-Li) Alloy 8090 Application

Aluminum Lithium Alloys are used in marine, aerospace, and electronic components because of their lightweight, good ductility, and corrosion resistance. The aerospace industry uses include wing leading and trailing edges, fuselage bulkhead webs, and internal framework parts. Al-Li is being considered for many applications in advanced aircraft including wing structures.