On January 7, 2022, the world's first high-strength, high-toughness, low-density steel plate produced by a 100-ton electric furnace smelting process has recently begun commercial mass production in ZXTG Special Steel Group.
This is a new breakthrough in the large-scale industrial production technology of this product by ZXTG and the China Academy of Materials Science and Engineering after years of research and solving key process technologies in many aspects.
This major technological breakthrough puts China at the international leading level in the industrial production technology of high-strength, high-toughness and low-density steel, and it also marks that China has become the only country in the world that has mastered the technology for large-scale production of high-strength, high-toughness and low-density steel.
At present, the international research on high-strength, low-density steel is in the laboratory stage, and there is a technical "bottleneck" in composition design and manufacturing process. Major countries in the world are paying great attention to its industrialized preparation and engineering application technology.
In 2005 and 2015, Japan’s Nippon Steel and South Korea’s Pohang Steel conducted industrial trial production of rolled low-density steels, and no successful reports have been seen so far. In 2020, the United States plans to invest 20 million US dollars in the next five years to carry out industrialization suitable for industrialization. Research on the composition system of low-density steel. The project is expected to be completed in 2025.
Therefore, the successful preparation of China's 100-ton large-scale industrialized low-density steel indicates that it has led the United States in the industrialization and engineering application of rolling low-density steel for nearly ten years, and has become the only company in the world with a density below 7.0g/cm3. Hot-rolled low-density steel batch industrialized manufacturing technology and application technology country.
The density of high-strength, high-toughness, low-density steel is more than 10% lower than that of conventional high-strength steel, and it has good strength and toughness. Application prospects and great strategic significance.