6061 Aluminum

[morgy]

I have always had good luck with 4043. I think it's a little more user friendly and looks a little better.

[Victor Mansfield]

What is the part you are welding? You will get around 10% higher strength with a 5356 filler metal, but 4043 will have better ductility and is less crack sensitive.

[browniethewelder]

Ok Thank you Bob, for the help.

[aametalmaster]

5356 would be fine as well as 4043...Bob

[browniethewelder]

What welding wire should I use on 6061 aluminum? Would 5356 or 5556 be ok to use? I was planning to mig weld it. Thanks