Re: Mig wire type
When we were boxing deuce rails for about 10 years in my chassis fab shop we used a wire between S1 and S6 both for strength and ease of grinding. I can't find the exact number anymore. We used 75/25 gas. The man that worked for me for 10 years boxing rails got to be a dam good mig welder. When he first started he left a lot of material to grind but after a few years he was leaving minimal excess. We never had any complaints about rails separating so he must have burned them together good. Still seemed like we went thru a lot of 24 grit discs over the years
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