JSHX(SH:600307) 势银能链·2025-07-24 03:33Core Viewpoint - The hydrogen energy industry is experiencing rapid growth, driven by the global transition to clean energy and the urgent demand for special steel materials for liquid hydrogen storage [3][4]. Group 1: Company Developments - Hongxing Co., Ltd. has developed a new type of austenitic stainless steel plate (S31603) for ultra-low temperature pressure vessels, which has passed technical evaluation by the China Special Equipment Inspection and Research Institute [2][5]. - The successful development of S31603 (JLH) stainless steel plate fills a technological gap in the northwest region of China and addresses the scarcity of materials for ultra-low temperature applications in the hydrogen energy sector [9]. Group 2: Technical Achievements - The S31603 (JLH) stainless steel plate exhibits excellent plasticity, impact toughness, and fracture toughness at -269°C, with low hydrogen embrittlement sensitivity, meeting the stringent requirements for liquid hydrogen/liquid helium pressure vessels [5][7]. - The material has been certified for a thickness range of 5-60mm and a temperature range of -269 to 100°C, making it suitable for manufacturing ultra-low temperature storage equipment [7]. Group 3: Industry Implications - The advancements in ultra-low temperature materials are expected to promote the domestic production of hydrogen energy technologies and support China's clean energy transition and carbon neutrality goals [9].