• Twin-roll strip casting successfully produces 2.4 mm thick Cu-12Fe alloy strips with a uniform Fe phase distribution and a 'sandwich structure'.
• Direct cold rolling and aging (Process I) achieves 69.5% IACS electrical conductivity and 513 MPa tensile strength, balancing conductivity and strength.
• Two-step processing (Process II) further improves tensile strength to 533 MPa while maintaining 66.3% IACS conductivity and enhanced magnetic properties.
• The study demonstrates an efficient, low-cost route for producing high-performance Cu-Fe thin strips for electromagnetic shielding applications.