Tube welding fluxes make stronger weld seams

摘要

CHROMIUM is the alloying element that gives 409 and 439 series stainless steels their oxidation resistance. It forms chromium oxide (Cr2O3) as a surface coating that essentially prevents further oxidation, much as aluminium oxide (AI2O3) does for aluminium metal. Chromium oxide is a tenacious and very stable surface oxide that is not easily removed and does an excellent job of preventing the stainless steels from further oxidation.