Is there a difference between 6063-T5 & 6063-T52 Aluminum?
A supplier lists their 1"x3" Tube as 6063-T52, but I can't find that alloy on www.matweb.com.
I'm assuming that the "2" in the "T52" is just another minor designation or maybe a propriatary number?
If not, what does the "2" represent...