Quote:
Originally Posted by AL427SBF
Aluminum 7068 is the latest alloy making its' way into DoD/Aerospace applications. Combines the strength of steel with the weight of Alu and is used where high strength is required along with good resistance to corrosion and temp cycling fatigue, you might want to look at that. Can be ordered in tubes, bars and rounds of all sizes.
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... and not that new, but the qualification programs for aerospace are extreme and take years to complete when fully characterizing end-of-life failure modes.