Sandvik Materials Technology has launched a hyper duplex stainless steel tube material, Sandvik SAF 3207 HD, which is designed to improve umbilical performance in increasingly demanding subsea environments. It provides a tensile strength of 980 to 1180MPa and a maximum operating temperature of up to 90C. This compares with a tensile strength of 800-1100MPa and maximum water temperature rating of 65C for the company’s standard super-duplex grade SAF 2507. SAF 2507 can be deployed in water depths greater than 2000m. Sandvik SAF 3207 HD is designed specifically for deepwater, high temperature, and extreme pressure applications.
