8090 Aluminum Alloy Plate


8090 aluminum alloy is a lithium-based wrought alloy. Addition of lithium to aluminum helps to reduce density and increase stiffness. When properly alloyed, aluminum- lithium alloys can have excellent combinations of strength and toughness.

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

It is used as an advanced material in the design of high technology parts for the aerospace sector. The alloy also finds use in defence and weaponry systems.

Chemical Composition

Chemical ElementContent Weight (%)
Aluminum, Al93 – 96.2
Lithium, Li2.2 – 2.7
Copper, Cu1- 1.6
Magnesium, Mg0.60 – 1.3
Iron, Fe≤ 0.30
Zinc, Zn≤ 0.25
Silicon, Si≤ 0.20
Titanium, Ti≤ 0.10
Chromium, Cr≤ 0.10
Manganese, Mn≤ 0.10
Zirconium, Zr0.040 – 0.16
Other (each)≤ 0.050
Other (total)≤ 0.15


Mechanical Properties:


Mechanical PropertiesMetricImperial
Tensile strength450 MPa65300 psi
Yield strength370 MPa53700 psi
Elongation at break7%7%
Elastic modulus77 GPa11200 ksi
Shear strength270 MPa39200 psi
Hardness, Brinell (@load 500 kg; thickness 10.0 mm)121121
Hardness, Knoop (converted from Brinell hardness value)151151
Hardness, Rockwell A (converted from Brinell hardness value)47.247.2
Hardness, Rockwell B (converted from Brinell hardness value)7575
Hardness, Vickers (converted from Brinell hardness value)137137


Physical Properties:


Density2.54 g/cm³0.0918 lb/in³
Melting point600 – 655°C1110 – 1210°F


Thermal Properties:


Thermal PropertiesMetricEnglish
CTE, linear 21.4 µm/m-°C
@Temperature 20.0 - 100 °C
11.9 µin/in-°F
@Temperature 68.0 - 212 °F
Specific Heat Capacity 0.930 J/g-°C
@Temperature 100 °C
0.222 BTU/lb-°F
@Temperature 212 °F
Thermal Conductivity 95.3 W/m-K661 BTU-in/hr-ft²-°F
Melting Point 600 - 655 °C1110 - 1210 °F
Solidus 600 °C1110 °F
Liquidus 655 °C1210 °F




  • Weaponry systems
  • Defence systems
  • Advanced material for aerospace components
  • Cryogenic temperature service

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