Core Viewpoint - Xiaomi's YU7 has achieved a world record by utilizing 2200 MPa ultra-high-strength steel, surpassing previous records in automotive steel strength [2][12]. Group 1: Technological Advancements - The introduction of 2200 MPa ultra-high-strength steel marks a significant advancement from the previous 2000 MPa steel, enhancing strength by approximately 200 MPa while maintaining similar toughness [12][30]. - The development of this steel was led by Professor Yi Hongliang and his team at Northeast University, who previously developed the 2000 MPa and 2000 MPa aluminum-silicon coated hot-formed steel technologies [12][30]. - The steel's strength is categorized as a range, with actual strength typically between 1700-1850 MPa after processing [13]. Group 2: Market Dynamics - The global market for hot-formed steel is approximately 5 million tons annually, with China accounting for about 1 million tons of this demand [33]. - The market for aluminum-silicon coated hot-formed steel is projected to reach 10 million tons by 2030, with China expected to hold a 35% market share [33]. - Xiaomi's investment in Yutai Tang and the use of their latest technology in YU7 positions the vehicle as the first to utilize this advanced steel, potentially impacting the competitive landscape [35]. Group 3: Patent Landscape - ArcelorMittal has historically held a monopoly on aluminum-silicon coated hot-formed steel patents, which has limited competition in the market [21][22]. - Recent legal challenges have seen ArcelorMittal's patents declared invalid in China, allowing domestic companies to explore alternatives without infringing on these patents [25][32]. - Yutai Tang's innovative approach to reducing the coating thickness from 30 microns to 15 microns has been pivotal in enhancing toughness while maintaining corrosion resistance, challenging ArcelorMittal's long-standing patent dominance [30][31].