Sandvik Surface Technology has launched interconnector materials for use in solid oxide fuel cell technology, which combine high temperature corrosion resistance with surface conductivity. Pre-coated Sandvik Sanergy™ HT, is the result of extensive and focused research and development by the company to introduce the optimum steel grade combined with tailor-made surface coatings to minimise chromium evaporation and extend operational life. Sandvik Sanergy HT utilizes normal industrial strip production routes and the coating is applied by Sandvik Surface Technology in a continuous process. Unique to Sandvik Sanergy HT in the pre-coated form is its extremely low degradation rate in fuel cell applications as a result of the cobalt coating reducing the electrical resistance of the surface as well as minimizing chromium evaporation. Carefully controlled chemical composition of the steel strip, with the addition of molybdenum and niobium, improves the material’s high temperature strength and oxidation resistance. The pre-coated Sandvik Sanergy HT utilizes an environmentally friendly manufacturing process and the steel strip is fully recyclable.
