Properties and usage
It is 30 % stronger and 5 % less dense than the Al 2219 alloy used in the original Space Shuttle's external tank.
Metallurgical formula
The alloy composition of Al 2195 aluminium is:
- Aluminium: 91.9 to 94.9%
- Copper: 3.7 to 4.3%
- Lithium: 0.8 to 1.2%
- Manganese: 0.25 to 0.8%
- Silver: 0.25 to 0.6%
- Zirconium: 0.08 to 0.16%
- Iron: 0.15% max
- Silicon: 0.12% max
- Titanium: 0.1% max
- Zinc: 0.25% max
- Residuals: 0.15% max
Nations that produce it
- USA (most)
- Canada (small)
- Japan (minimal)
- UK (minimal)
Also see
- What is an 'alloy'?
- Space Shuttle
- Lockheed D-21
- Useful metals
- Nickel
- What is an 'alloy'
- What is 'galvanizing'
- Thoriated magnesium (AKA- Mag-Thor)