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John Downing wrote:
Charlie; In more than 50 years of welding I have never seen it recommended that 2024 aluminum be welded, except with specialized equipment. It is prone to cracking. If 5052 is not available, I believe 3003 would be a better choice. JohnD IMHO
I was trying to say that if the entire tank is pro-sealed & riveted (no welding), 2024 could be used instead of 5052. 2024 is supposed to be significantly stronger &, so thinner material might be possible, making a (slightly) lighter tank.
Sorry for the confusion.
Charlie
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