On August 9, the world's first ring, which set a Guinness World Record, was successfully shipped and received wide media attention. This is the world's largest diameter and weight of the weldless integral stainless steel forged ring, its diameter of 15.673 meters, weighing 150 tons, is China's fourth-generation nuclear power unit - Fujian Xiapu 600,000 kilowatts of sodium-cooled fast neutron breeder reactor (hereinafter referred to as "fast reactor "It is the "backbone" of the reactor and will operate continuously for forty years under the weight of 7000 tons, which requires very high quality and performance. The ring parts to TISCO 316H high purity stainless steel continuous casting billet as the raw material to build, TISCO as the only supplier of this material, successfully completed the task of guaranteeing the supply of No. 1 and No. 2 pile continuous casting billet.
As one of the earliest enterprises in China to develop and produce nuclear power materials, TISCO has always adhered to independent innovation over the years, constantly challenging the limits, breaking through a series of key technologies, the first in China to develop and produce a variety of high-quality nuclear power special stainless steel materials, including CAP1000, CAP1400, "Hualong One" and other The third-generation nuclear power plant components with ultra-thick and wide stainless steel plates, high-strength stainless steel composite plates for injection boxes, reactor plant pool modules with wide duplex stainless steel hot-rolled plates, wide austenitic stainless steel cold-rolled plates, etc.. In addition, TISCO also successfully developed stainless steel materials for key parts of the International Thermonuclear Fusion Reactor (ITER project). The overall stainless steel manufacturing technology for nuclear power has reached the international leading level and won the first prize of metallurgical science and technology in 2021.
The relevant person in charge of the special steel development business department said, along with the development of nuclear power technology in China, TISCO has now become an important steel production base for nuclear power in China, and its products are widely used in important nuclear power projects at home and abroad. TISCO will adhere to the innovation drive, to solve the problem of heavy dependence on imports of key materials in the field of nuclear power, and accelerate the localization of key stainless steel materials to contribute to the process.