Stainless Steel 409 is a ferritic stainless steel with a unique composition that includes chromium, nickel, and trace amounts of other elements such as titanium. The inclusion of titanium is significant as it enhances the material's weldability and overall stability. The chromium content, which typically ranges between 10.5% and 11.75%, provides a passive layer of oxide on the surface, offering moderate corrosion resistance. However, unlike austenitic stainless steels, 409 stainless steel has lower nickel content, which contributes to its affordability while still providing satisfactory performance in less aggressive environments.
Stainless Steel 409 Pipes & Tubes are primarily used in environments where high-temperature oxidation and mild corrosion resistance are necessary. They are particularly valued for their ability to maintain structural integrity under elevated temperatures, making them suitable for automotive exhaust systems, heat exchangers, and other applications where thermal conditions fluctuate.