Pipingprojects.us is one of the leading Flanges Manufacturer in USA. We manufacture and supply different types of Flanges such as Lap joint flange, Weld neck flange, Orific flange, Slip on flage, and others. We use wide range of materials to manufacture our high-quality flanges. The Alloy Steel Flanges are predominantly composed of chromium, molybdenum, and nickel in their chemical composition.