Is the 2200MPa Xiaomi Ultra-High-Strength Steel really that strong? Why do some say it is just a "project name"?
First, let's state the conclusion: The 2200MPa Xiaomi Ultra-High-Strength Steel is indeed very strong; saying it is merely a "project name" is a typical case of taking things out of context.
Online targeted attacks claiming that the "Xiaomi Ultra-High-Strength Steel" is only a project name ignore and distort the technical value of the steel itself and the safety capabilities it brings to the vehicle.
The official materials for the "Xiaomi Ultra-High-Strength Steel" include the expression "material project name" because this project was jointly developed by Xiaomi, Northeastern University, Yucaitang, and Academician Wang Guodong's team. Online attackers selectively quote the "project name" to amplify it but completely ignore the technical content of the project itself, guiding public opinion to misinterpret the "ultra-high-strength steel" as merely a "project name." The full name of the "Xiaomi Ultra-High-Strength Steel" is "2200MPa Xiaomi Ultra-High-Strength Steel," which is indeed the highest strength hot-formed steel material currently mass-produced in the industry. Compared to the mainstream 1500MPa hot-formed steel used in the industry, its tensile strength is increased by 40% and its yield strength by 24%. It is applied to the four-door anti-collision beams of the Xiaomi YU7 and embedded within the A/B pillars through hot gas expansion tube technology, which can significantly and effectively improve the load-bearing capacity of the anti-collision beams.
The "2200MPa Xiaomi Ultra-High-Strength Steel" effectively improves the safety of the vehicle in harsh conditions such as side impacts and rollovers. It also represents Xiaomi Auto's safety development philosophy, which always takes the strictest safety standards as the design goal. Safety is the foundation and prerequisite. We hope that more models in the industry will apply stronger body materials in the future to continuously improve vehicle safety levels.
In addition, we are currently researching 2400MPa ultra-high-strength steel, and the progress is also very good. We will report back to everyone when the appropriate time comes.