Specifications heat resistant casting tube centrifugal casting/spun casting for Steam reformer high nickle ... , hangers, outlet collectors, inlet and outlet manifolds, tube stanchions, convection coils, pigtails, tube sheets, tube supports, transfer lines, furnace hooks, T-pieces ... hole boring, welding . Material: High Nickel and high Chrome heat resistant alloys, Cobalt base alloys, like. HU,HT,HK,HP ...