PURPOSE: To prevent a wasteful use of a noble metallic catalyst and the peeling of layers by forming alumina coating layers on corner parts of a metallic catalyst carrier with a wash coating soln. removed of only a noble metallic catalyst component and then forming wash coating layers on the surfaces of the alumina coating layers.
CONSTITUTION: Metallic corrugated sheets 11 and metallic flat sheets 13 are alternately superposed to obtain the objective metallic catalyst carrier 9 used for a catalytic converter for purification of exhaust gas from an engine. Alumina coating layers 17 are formed on corner parts 15 close to the joints of the sheets 11, 13 of an alumina coating soln. prepd. by removing only a noble metallic catalyst component from a wash coating soln. contg. a noble metallic catalyst 19 and wash coating layers 21 are formed on the surfaces of the alumina coating layers 17 and the surfaces of the sheets 11, 13 of the wash coating soln. A wasteful use of the noble metallic catalyst 19 is prevented at the corner parts 15 where catalytic activity cannot be expected and the peeling of the layers 17, 21 is prevented by using the same principal component in the layers 17, 21.