Prism TuboTech Pvt. Ltd. Is one of the foremost manufacturers, suppliers, and distributors of Super duplex steel tubes. Our Stainless steel products are designed for long durability and under the guidance of industry professionals to provide A1 results to our clientele. Super Duplex stainless tubes like S32750, are a mixed microstructure of austenite and ferrite (50-50), which has improved strength over ferritic and austenitic steel grades.