AA 2195 Aluminum Alloy
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Family: Aluminum Alloy
Copper Alloy (Al-Cu). AA designation 2195.
Performance Ratings
Performance Radar
Composition
Mechanical Properties
| Tensile Strength | 572.0 MPa |
| Yield Strength | 522.0 MPa |
| Elongation | 9.1% |
| Hardness (Rockwell) |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Ag | 0,41 |
| Al | 94,18 |
| Cu | 3,97 |
| Fe | 0,15 |
| Li | 1,07 |
| Mg | 0,415 |
| Mn | 0,23 |
| Si | 0,09 |
| Ti | 0,11 |
| Zr | 0,13 |
Where to Buy AA 2195 Aluminum Alloy
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Description
AA 2195 is a high-performance aluminum-copper-lithium alloy (~4% Cu, 1% Li) originally developed for the Space Shuttle External Tank to replace the heavier 2219 alloy. It provides significantly higher strength and stiffness than conventional aluminum alloys along with excellent cryogenic toughness at liquid hydrogen temperatures. Primary applications include aerospace cryogenic fuel tanks, launch vehicle structures, and spacecraft pressure vessels.