A Nickel-Iron-Cobalt, controlled expansion alloy containing 29% Nickel. It's coefficient of expansion we produce ... , Inconel 718, Monel 400, Monel K500, Nimonic 80A, Alloy G3, Alloy A286, AL6XN, Invar, Kovar, alloy.Available forms are seamless pipe, welded pipe, seamless ... , bar, wire, sheet, plate, forgings, pipe fittings and flanges,strip. Kovar welded pipe