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Originally Posted by Rick TYler
Yeah, well, you only say that because it's true. Sorry for the misunderstanding.
I imagine that Jeff's local store sells 1100 stock, too. It's almost pure aluminum without the magnesium, copper, silicon, and other fun stuff that makes aluminum useful.
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Yes, sorry for the confusion. Most of the hardware stores / Home Depot / Lowes / etc around here sell the aluminum that is stocked in the nice display rack. I'm not sure of the alloy, but I suspect it is probably 1100 series. The intent of my comment was that we are lucky enough to have one store near here that stocks 6061, which is one of the common aerospace alloys. The machine shop that is just down the hall from my office machines a few thousand pounds of 6061 a year, so I am quite familiar with it. It machines and welds nicely, but will work harden, so you only get to bend it one time. The rest of my experience is with 2024 and 7075. neither of which are weldable.
For a discussion of what the different alloy series numbers mean and some of the properties of each, interested parties can check out
http://www.key-to-metals.com/Article2.htm
Keep in mind that all opinions in the above post are coming from an EE, and so are probably worth less than you paid for them
