A method of centrifugally casting a composite tubular product comprised of an outer alloy layer (15) and at least one inner alloy layer (16) while substantially inhibiting the formation of a metallurgical bond between layers in the final casting. The product is produced using a rotatable centrifugal casting mold having a cylindrical inner surface adapted to receive a molten metal alloy. The outer layer (15) of an alloy having a melting point of at least about 1300 DEG C is poured into the rotatable mold. The outer layer (15) is solidified and cooled to a temperature not exceeding about 92 % of its absolute melting point before pouring of the least one inner layer (16) having a melting point of at least about 1300 DEG C. The composite casting may then by mechanically hot worked, such as by hot extrusion, to produce a composite tube in which the layers are metallurgically bonded to each other.