Silver Tubes is one of the reputed producer and wholesaler of Stainless Steel 304L Tubes, which is the most common grade and known as classic 18/8 (18 % chromium and 8% nickel) stainless steel. Just like standard steel, Stainless Steel 304L Seamless Tubes can get marked up by fingerprints and grease, develop discoloration, and eventually rust. Stainless Steel 304L Welded Tubes is austenitic steel possessing a minimum of 18% chromium and 8% nickel, combined with a maximum of 0.08% carbon.