Fin for heat exchanger and heat exchanger

The invention relates to the technical field of heat exchanger part manufacturing and assembling, and particularly discloses a fin for a heat exchanger, which is suitable for being merged into a fin set in an alignment and lamination mode, and comprises a main body part, a plurality of heat transfer tube slots and a plurality of heat transfer tube slots, and the clamping tongue part protrudes outwards from the surface of the main body part and is constructed to be capable of clamping a pressure-bearing fin to limit the position of the pressure-bearing fin in the laminating direction when the fin is merged into a fin set. The main body part is provided with a clamping groove, and the clamping tongue part is provided with a clamping hook matched with the clamping groove of the pressure-bearing fin. The fin has the advantages of lodging resistance and skew resistance in the scraping and collecting process, and the fin set structure on the heat exchanger is firmer and more stable. 本发明涉及热交换器零部件制造和装配的技术领域，其具体公开一种热交