Metal catalyst carrier

A metal catalyst carrier comprising:

• a highly corrugated sheet made of a sheet metal;
• and
• one of a slightly corrugated sheet and a flat sheet made of a sheet metal, said slightly corrugated sheet having a smaller corrugation than a corrugation of said highly corrugated sheet,
• wherein said highly corrugated sheet and the one of said slightly corrugated sheet and said flat sheet are stacked and rolled in multi-layers so as to form cell passages through which exhaust gas passes between said highly corrugated sheet and the one of said slightly corrugated sheet and said flat sheet,
• said highly corrugated sheet being provided with a plurality of slot arrays arranged in a cell passage direction respectively, the slot arrays having a plurality of slots which are formed before the sheet metal is corrugated and disposed along a direction perpendicular to the cell passage direction respectively, and
• wherein an interval X is set in the direction perpendicular to the cell passage direction between opening peripheral edge portions of the slots adjacent to each other in the slot arrays adjacent to each other, an interval Y being set in the cell passage direction between the opening peripheral edge portions of the slots adjacent to each other in the slot arrays adjacent to each other, the interval X and the interval Y being set under a condition satisfying X≧0 mm and X≧−(5/2)Y+10 mm.