Baosteel Launches Four Types of Non-Oriented Silicon Steels Globally for the First Time

On May 22, Baosteel held the 4th Non-Oriented Electrical Steel Application Technology Conference in Chengdu. At the event, four new high-performance non-oriented electrical steel products were launched globally for the first time, including an ultra-thin, ultra-low core loss, and high magnetic flux density non-oriented electrical steel, which is the world's first product with a core loss value of less than 9 W/kg. This product will significantly enhance the performance and efficiency limits of high-speed motors, and in the future, it can be widely applied in fields such as humanoid robots and low-altitude aircraft.

Non-oriented electrical steel is the most widely used soft magnetic alloy and a core material for generators and motors. Its electromagnetic properties play a crucial role in motor efficiency. As a core material for the low-carbon economy and society, Baosteel's non-oriented electrical steel, with its excellent high magnetic flux density, low core loss, and processing performance, demonstrates the best overall advantages in fields such as NEVs, industrial motors, household appliances, power generation equipment, low-altitude aircraft, and robots, gaining popularity both domestically and internationally.

The four new products launched this time are B15AHV950M, B10AHV900M, B50AM250, and 65WY600. Among them, B10AHV900M and B15AHV950M have thicknesses of 0.10 mm and 0.15 mm, respectively. In particular, the breakthrough non-oriented electrical steel product B10AHV900M is even thinner than an A4 sheet of paper. Meanwhile, it has an extremely low core loss, meaning the material's energy loss in a high-frequency alternating magnetic field is extremely low, breaking through the long-standing industry barrier of 9 W/kg (under 1.0 Tesla magnetization at 400 Hz). Additionally, it has high magnetic permeability, with a magnetic polarization intensity reaching 1.66 Tesla at a magnetic field strength of 5000 A/m, the highest globally in terms of magnetic properties. It is understood that the inability to achieve both "ultra-thin specifications" and "ultra-high performance" has long been a bottleneck limiting the performance improvement of non-oriented electrical steel and a challenge restricting the development of various motor industries. Although steel companies worldwide can produce non-oriented electrical steel with a thickness of 0.1 mm, no product has previously been able to simultaneously meet the above three indicators. The two products, B10AHV900M and B15AHV950M, have the advantage of "improving driving efficiency and extending the driving range of vehicles," making them the best materials for drive motors in NEVs.