Best aluminum for pipes

[Troy Hammons]

What's the best or easiest to form and weld aluminum for pipes? I was looking at 5052 on McMASTER. It says easy to weld and the specs are softer than 6061. Hoping some pipe guys will chime in. Thanks.

 

[Timbo Whalen]

I like 6061-0, and after machining/welding heat treat to T4 or T6.

6061-0 (annealed state) spins good, can be hard anodized or thermal barrier coated.

Try-

https://www.onlinemetals.com/en/product-guide/alloy/6061

 

[Troy Hammons]

Thanks. looks like they have pretty decent prices.