Profile: MDS Petrochemical Supplies specializes in supplying components to the petrochemical industry including stainless & carbon steel flanges, buttweld pipe fittings, stainless steel pipe fittings, steel & nickel alloys, and studbolts in exotic materials. Our butt weld pipe fittings are available in various formats such as elbows, tees, reducers, crosses, end caps, stub ends and swages. Butt weld pipe fittings are ideal multiple connection of pipes, and to prevent fluid leakage.