In present study, the deformation behavior of copper containing 5.02 by weight percentage of zinc is investigated with strain rate of 1×10-1 to 1×10-3 s-1 at room temperature. Yield strength is found to vary from 260 to 335 MPa and ductility is found to increase from 38.66 to 44.31 %. It is also found that yield strength was highest for the sample tested with 1× 10-3 s-1 strain rate and lower yield strength was observed with strain rate 1×10-1 s-1. Optical images are included in the paper for gauge section of the test samples. It also found that as strain rate increases the nature of grains changes from fine (with strain rate 1×10-3 s-1) to coarser grains (with strain rate 1×10-1 s-1). Thus, an increase in strength of specimen can be attributed to decrease in grain size of the specimen. © IAEME Publication.