Thats why you (generally) use 3 times thicker material when working with aluminum. If cost, time, and space werent a concern I would have used paper thin 4130 steel with a cross brace of 2" OD. (Sorry Kevin, Titanium is over my head) I'm not an engineer, but I've learned a lot over many years of hard knocks in the race car fabrication buisness to know that my alum brace is at least as strong (if not stronger) than OMP's mild steel bar. And it might even be lighter! PS. + alum is cooler than steel!