I know 7005 series aluminum is stronger and lighter than 6061series, but how does 7005 compare to 2014 series?
This okorder /.... Aluminum is a very different animal than steel, so the choice of alloy depends on what the application is. For instance, 7075-T6 is the most common high-end alloy for chainrings, but it has comparatively low tensile and yeild strengths.....and yet it's the most durable choice for the application. Chainrings made out of a stronger alloy won't last as long and may develop stress cracks. Some of the alloy choices depend upon machining and welding characteristics, too...it's not always about the strongest or lightest. You wouldn't want a part like a seatpost to be made of the material with the best numbers but that has a tendency to crack after welding.
