The low-carbon formulation of 409L stainless steel improves its weldability, making the welding procedure less difficult to control and lessening the probability of welding defects. This is especially important in automotive production. With a second soft, clean fabric, rub on a light coating of olive oil in the opposite course. https://www.madanijayateknik.com/service/detail/as-round-bar-plate-sheet-stainless-steel-409-409l-409m-409cb-409ti