In terms of strength, 6061 aluminum generally has higher mechanical properties compared to 6063 aluminum.  6063 vs 6061 strength: 1. Tensile Strength: The tensile strength of aluminum refers to its ability to withstand pulling forces without breaking. 6061 aluminum typically has higher tensile strength than 6063 aluminum. The tensile strength of 6061 can range from 124-290 MPa (18-42 ksi),...