The 590MPa low-density hot-dip galvanized cold-rolled high-strength automotive steel developed by Ansteel Group Iron and Steel Research Institute rolled off the production line at Ansteel Co., Ltd. Cold Rolling Plant. After being delivered to FAW Hongqi Company, Ansteel, and FAW Hongqi researchers successfully made the world's first hot-dip galvanized low-density steel parts.

It marks a big breakthrough in the field of low-density hot-dip galvanized high-strength steel by Ansteel Group, injecting new momentum into the development of lightweight automotive materials.

In the context of the automotive industry's continuous pursuit of low-carbonization and high-performance materials, the development of lightweight automotive materials has become an industry consensus. In the face of market demand, Ansteel Group Iron and Steel Research Institute will focus on the research and development of automotive steel products with the dual advantages of lightweight and corrosion resistance.

590MPa low-density hot-dip galvanized cold-rolled high-strength automotive steel contains a high level of light alloy elements, which makes galvanizing very difficult. The high oxidizability of alloy elements brings great challenges to the surface quality control of the coating during the hot-dip galvanizing process. In this regard, Anshan Iron and Steel Research Institute, together with relevant departments and units of Anshan Iron and Steel Co., Ltd., set up a project team to conduct research. They have successfully overcome a series of process and technical difficulties and successfully achieved the industrial production of 590MPa-grade low-density hot-dip galvanized cold-rolled high-strength automotive steel.

This product not only has the characteristics of high strength and good corrosion resistance, but its low-density characteristics also help automobile manufacturers design and produce automotive parts with better performance, lighter weight, and longer service life. Based on the characteristics of this product, Anshan Iron and Steel and FAW Hongqi researchers carried out the selection and stamping experiments of test stamping parts and successfully produced the world's first hot-dip galvanized low-density steel parts.