LM1773 Aluminum-Lithium (Al-Li) Alloy 2090

Catalog No.	LM1773
Surface	Polished
Thickness	1-20 mm
Width	100-450 mm
Diameter	φ80-φ200

Aluminum-Lithium (Al-Li) Alloy 2090 can be used in marine, aerospace, and electronic components because of their lightweight, good ductility, and corrosion resistance. 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 2090 Description

Aluminum-Lithium (Al-Li) Alloy 2090 can be used in marine, aerospace, and electronic components because of their lightweight, good ductility, and corrosion resistance. 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 2090 Specifications

Metal Mechanic Property

Item#	Density, p/gcm3	Temper	Tensile Stength Rm/MPa	Yield Strength Rpo2/Mpa	Elongation at Break, A/%	Fracture toughness MPa-m½	Elasticity mdulus E/GPa
2090	2.59 g/cc	T84	525	470	5.0	49.0		76.0

Metal Composition

Element	Content (%)
Aluminum, Al	93.2 - 95.6
Copper, Cu	2.4 - 3
Lithium, Li	1.9 - 2.6
Magnesium, Mg	≤ 0.25
Titanium, Ti	≤ 0.15
Iron, Fe	≤ 0.12
Zinc, Zn	≤ 0.10
Silicon, Si	≤ 0.10
Zirconium, Zr	0.080 - 0.15
Manganese, Mn	≤ 0.050
Chromium, Cr	≤ 0.050
Other (each)	≤ 0.050
Other (total)	≤ 0.15

Metal Mechanic Property

Item#	E/Gpa	Rm/Mpa	Rpo2/Mpa	A/%	r/g cm-3
2090	79.7	569	530	7.9	2.57

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 2090 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.