I have a project for aluminum rod. Tig rod is cheap and available.
I see that 5183 has higher shear strengths than 4043. is 5183 stiffer than 4043? If a bird sat on the end of a 24" piece which material would deflect more? Ya, I'm building a TV antenna. Thanks, Guys, Mikek ==================================
I couldn't find Young's Modulus for either 4043 or 5183, but this site,
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gives data for 1100, 2024, 6061, 7075, and 356, and all are between 10 and 10.5 x
10^6 psi. I bet that 5183 and 4043 fall in this range, too. That means that all have the same stiffness to +/- 2.5% so your bird will never know the difference :-).