2091 aluminium alloy

Summary

2091 Aluminium has Chromium, copper, iron, lithium, magnesium as minor alloying elements.[1]

Chemical Composition

Element [1] Value
Aluminum 91.9 - 95.4%
Chromium <= 0.10%
Copper 1.8 - 2.5%
Iron <= 0.30%
Lithium 1.7 - 2.3%
Magnesium 1.1 - 1.9%
Manganese <= 0.10%
Other, each <= 0.05%
Other, total <= 0.15%
Silicon <= 0.20%
Titanium <= 0.10%
Zinc <= 0.25%
Zirconium 0.04 - 0.16%

2091 Aluminium alloy properties

Properties [1] Value
Density 2.58 g/cc
Tensile Strength, Ultimate 430 MPa
Tensile Strength, Yield 330 MPa
Elongation at Break 18 %
Modulus of Elasticity 75.0 GPa
CTE, linear 23.9 µm/m-°C

@Temperature 20.0 - 100 °C

Specific Heat Capacity 0.860 J/g-°C

at Temperature 100 °C

Thermal Conductivity 84.0 W/m-K
Melting Point 560 - 670 °C
Solidus 560 °C
Liquidus 670 °C

Aluminium alloy table

References

  1. ^ a b c "2091 ALuminium alloy".{{cite web}}: CS1 maint: url-status (link)