You going to mig weld the seams? If you do. Use ER70S-6 .025 wire with gas. I like to use Argon gas. It's a bit cleaner then CO2. Have you gas flow between 30 to 50. The .035 wire is a little too thick. It doesn't melt fast enough, and may push through the puddle. Causing a hole. DO NOT USE fluxcore wire. Because you WILL have a lot of work cleaning everything up. The slag can be a bitch to clean up.
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