dsagers

I've been calling several local shop looking for aluminum stock.

From what I've been told 7075 T6 has about twice the tensile strength of 6061 T6. (80,000 vs 42,000)

I found the size of 7075 I need at a reasonable price, but the guy said it is T411 not T6.

What is the difference? Any links to pages that explain this rating system?




[Modified by dsagers, 4:47 PM 3/30/2004]

greg454

Go to this site and look up the different types of aluminum in the nonferrous metals search bar. It tells all aluminum properties.
http://www.matweb.com/search/SearchS...&catid=352#nfm

Hope this helps

Greg :seeya

zwede

Thanks for the link. Very usefull stuff :thumbs:

norvalwilhelm

I use 6061 T6 for most things and a step up is 2024 which is rated aircraft quality. 6061 T6 weld nicely too.

norvalwilhelm

greg454 that is a fantastic site and tomorrow I will pass it around to all my assossiates.

burners

Wow Greg, that is a fantastic site. Very comprehensive.

dasgers, the difference between a T4 heat treatment and a T6 is that the T6 is artificially aged so that it will have full strength sooner. T4 will probably be within 1000 or 2000 psi ultimate of T6 so 7075 T4 will still be stronger than 6061 T6. Keep in mind that 7075 can't be welded.

greg454

:cheers: Just doing my part to post as much stuff that I dont fully understand as possible. :jester

Greg

dsagers

Greg454, thanks for the link, very interesting stuff. Although I didn't find anything explaining T6 vs T4.

Burners, thanks to you for providing an explanation of the differences.