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Originally Posted by ahecht
Yes, but other aluminums don't fare as well. 5052 aluminum, for example, has ratios between 70 and 100. Other aluminums range from a ratio of 17 to a ratio of 237. |
6061 is definitley the most commonly available (and probably one of the cheapest) types of aluminum used structurally. Most of the aluminum extrusion kits, and most of the tubing/angle/channel found on FIRST robots is 6061.
Additionally, Polycarbonate varies (you'd have to go to some other brand than Lexan) and glass filled PCs have ratios around about 80. I'm pretty sure glass filled PC is too hard and brittle for most framing use.