Originally Posted by
WVU_Engineer
My Raleigh Venture is steel, and that is one of the reasons I chose it.
The biggest problem with Aluminum is that its yield strength and ultimate strength are so close, this is why the failures seem so sudden. The aluminum used for bike frames is always 6061-T6 from what I can tell, it isn't the strongest, but it is the strongest that is easily welded
I have two aluminum frames, neither of which is 6061-T6. One is 7005-T6 and the other is EA60-T6.