Core Viewpoint - The article highlights the successful industrialization of high-purity ton-level Hastelloy C276 metal substrate for second-generation high-temperature superconducting tapes, crucial for controlled nuclear fusion, also known as "artificial sun" [1][3]. Group 1: Industrialization and Technological Breakthrough - The research team at the Institute of Metal Research, Chinese Academy of Sciences, has developed a purification technology that overcomes the bottleneck in the metal substrate technology for second-generation high-temperature superconducting tapes [1][3]. - The successful production of the high-purity Hastelloy C276 metal substrate marks a significant step towards reducing reliance on imported materials, which are expensive and have uncertain supply times [3][4]. Group 2: Material Properties and Performance - The produced metal substrate has a thickness of only 0.046 mm, width of 12 mm, and length exceeding 2000 meters, with a surface roughness of less than 20 nanometers, indicating exceptional smoothness [4]. - The tensile strength of the material at liquid nitrogen temperatures exceeds 1900 MPa, capable of supporting a weight of 190 tons over an area the size of a fingernail, demonstrating outstanding mechanical properties [4]. - Even after being subjected to 900 degrees Celsius for 5 minutes and then cooled to room temperature, the tensile strength remains above 1200 MPa, showcasing excellent thermal stability and mechanical performance [4].