[archiebroge1]

gonna be ordering the materials for making my new subframe. What is the best grade of aluminium that I need to be ordering. Il be using 3/4 square tube various thicknesses of plate and sheet for my undertray.

thanks in advance guys:thumbsup:

 

[rubbersdown]

depends on your design. how are u building it?

 

[sidewayz]

I use at least 60 61.

 

[hybrid]

Most square aluminum tubing comes in a 6061. There are a few variants about but I dont see many.

6061 has the hardest alloy, being durable so to speak and still maintains weldable properties. 7075 welds for shit and as you go down the list in reverse, the alloys become softer and less predictable for your application.

Long story short? Get 6061 and in 1/8" wall. Your welder will thank you later for it.

 

[archiebroge1]

I use at least 60 61.

Cool so the lenghts Im looking at are 6068 so that will be ok then ?

 

[sidewayz]

Cool so the lenghts Im looking at are 6068 so that will be ok then ?

Im not talking about the length. 6061 is the grade. When I get it shipped I can order up to like 104 inches.

 

[archiebroge1]

Im not talking about the length. 6061 is the grade. When I get it shipped I can order up to like 104 inches.

Yeah I know that mate lol. It's graded 6068.

 

[hybrid]

yes 6068 is a fine alloy for your project