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