Super Duplex 25 Chrome grades, such as 25CRW and 25CRS, are high-strength duplex stainless steels with a PREN ≥40, offering exceptional resistance to localized corrosion and H2S in high-chloride, sweet and moderately sour environments up to 450°F, making them ideal for demanding applications like tubing and liners in saltwater and water injection wells, as well as Class VI/CCS/CCUS and geothermal projects where reliable performance in corrosive conditions is critical.




