Divine Metal & Alloys 904L Stainless Steel Flanges are comprised of a nickel-chromium austenitic Stainless steel that has 23% nickel and 19% chromium least in the synthesis with carbon, manganese, silicon, phosphorus, sulphur, copper, and 4% molybdenum. Divine Metal and Alloys is the main provider and producer of the 904L Stainless Steel Flanges in different classifications.