<p>The sheets processed through the constrained groove pressing (CGP) technique undergo severe deformation to produce ultrafine-grain materials. However, surface defects such as unevenness and die impressions limit the commercial applicability of CGP-processed samples and introduce anisotropy in sheet metals. In this work, tensile tests are conducted parallel and perpendicular to the grooves on the CGP-processed samples. The tensile properties, however, are not uniform in different orientations, primarily due to surface defects and the expected inhomogeneity of the microstructure. Furthermore, the perpendicular samples exhibit early necking instability and tearing at lower loads compared to the parallel samples. These issues can be mitigated by reducing surface defects in CGP-processed samples. A uniform strain distribution for the parallel samples is analytically identified and validated using DIC strain distribution.</p>