PURPOSE: To provide a titled silver palladium alloy suitable for firing of porcelain for dental purpose by consisting said alloy of specifically composed palladium, copper oxide, zinc oxide and silver.

CONSTITUTION: A low expansible alloy consists of 10W70wt% palladium, 1W10% copper oxide, 1W15% zinc oxide and the balance silver. A product of the above- described alloy is produced by casting the molten alloy consisting of a prescribed ratio of silver, palladium, copper and zinc to the prescribed product shape then heating and holding the casting in a temp. range of about 500W850°C in the atm. air or oxygen atmosphere to oxidize internally the alloy and to disperse uniformly the oxide of copper and zinc into the base phase of silver-palladium or powdering the molten alloy composed of silver-palladium-copper-zinc to form coarse alloy powder, treating the powder at about 700W800°C in an oxidative atmosphere of oxygen, air, superheated steam, etc. to form the composite powder composed of silver-palladium-copper oxide-zinc oxide then subjecting the composite powder to working such as compression molding, hot extrusion, cold rollling, etc.