On September 2, it emerged that the Technical Institute of Physics and Chemistry, under the Chinese Academy of Sciences, had proudly declared a groundbreaking achievement. After over three years of meticulous research and development, their team has successfully introduced a cutting-edge 'backbone' for high-temperature superconducting tapes—an innovative iron-based alloy substrate, internally designated as DW01. Rigorous testing conducted by Shanghai Superconductor Technology Co., Ltd., has revealed that superconducting tapes crafted with this novel substrate exhibit performance metrics that significantly outshine those of their traditional Hastelloy alloy counterparts. This milestone represents a pivotal leap forward in China's pursuit of self-sufficiency in the core materials essential for high-temperature superconducting tapes, showcasing the nation's growing prowess in this advanced technological domain.