This paper shows comparison of Aluminum and Copper fin tube intercooler used in multistage reciprocating air compressor. Results are validated with ANSYS – Fluent - 18.2 software. The experimentation is done on the Copper fin tube length 1090mm with helically wounded strip width of 6mm and 8 numbers of fins per inch. Volumetric efficiency increases and work input decreases for Copper fin tube with air velocity of 5 m/s. The results shown increase in heat transfer with decreasing air temperature