Hello friends! 👌
I have some material questions. We are welding stainless converters to our bio charcoal boilers and that material is a bit hard to weld. It’s 8mm stainless 314 (1.4841) and because of the size of the converter we are mig welding it. The welder isn’t cleaning the plates at all and we are not even grinding the mill scale today because they say that stainless doesn’t have mill scale.

We are having issues with the welding because that material is hard to get the weld pool to flow properly. Does anybody here have any experience with this material? How do you make it flow good?

We are using 310 wire and air liquids arcal chrome (90% Ar/2% co2) but it’s just a mess!

We can’t tig weld it because it’s 6 meters long and the budget don’t allow it.

Best regards from Sweden so that’s why my grammar is what it is 😅 🇸🇪