I'm unable to find anything expressing the ability of box extruded aluminum except the brinell hardness (40) which doesn't make sense to me (explain if it's what I'm looking for
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We would like to use extrusions in the range of 1-2" outside width and we're wondering how thin the wall can be. We want to use it for the main portion of an arm, so the forces will be fairly high and it will be a few feet long.