... used in the joining of various types of s Stainless Steel Sub Arc Wire The sub arc process uses a powdered flux that the ... arc. Available in a large variety of AWS classifications Subarc Stainless Steel MIG wire is used in the joining of various types ... of stainless steel. Spec.ER304, ER308, ER308L, ER321, ER309, ER309L, ER310, ER316, ER316L ...