Like Tim said, 6061 refers to the specific alloy. It is often followed by
something like T-4 or T-6 which has to do with the heat treatment.
It is all explained pretty well at:
http://www.alcotec.com/techpage.htm
Paul


"pogo" wrote in message
news
What does it mean when I see something like " lot of 6061 aluminum tubes"
?
I mean what does the number mean and how can I make sense of it ?

Thanks !