Designed for both static and dynamic applications, steel tube umbilicals (STUs) are becoming the preferred solution in many deep-water projects for hydraulic control and chemical injection lines for wellhead control system. The STU technology provides enhanced response times and higher working pressures when compared to more traditional thermoplastic hose based design. The STUs also prevent the permeation of fluids from the tube, particularly with an exellent corrosion resistance. Steel tube umbilicals are designed to operate in the harshest of environments and ultra-deep water applications, at dephts of up 3,000 meters.