Taseto MC309L description: TASETO MC309L is a metal flux cored wire and used for welding of 1st layer on Type 304 or 304L clad steel, welding of dissimilar metals such as Type 304 or 304L stainless steel to carbon steel or low alloy steel, and welding of first layer on carbon steel or low alloy steel of overlay welding. It makes less slag and produces a beautiful bead form. As MC309L can be used with higher current compared to slag type flux cored wires, the rate of deposition is high, and enable efficient high speed welding.