Besides the four door anti-collision beams, where else is the 2200MPa ultra-high-strength steel used in the YU7?

Question

Details the specific application locations of the 10 instances of 2200MPa ultra-high-strength steel in the YU7.

Accepted Answer

The 2200MPa ultra-high-strength steel is applied in 10 locations across the vehicle, covering two core areas:
Four Door Anti-Collision Beams (4 locations): Installed inside the four doors, serving as the first line of defense in side collisions. Compared to 1500MPa hot-formed steel, its tensile strength is increased by 40% and yield strength by 24%;
Embedded Roll Cage (6 locations): The A-pillars and B-pillars embed 2200MPa Xiaomi ultra-high-strength steel gas-expansion tubes, forming an "embedded roll cage." This increases the load-bearing capacity of the A-pillar by 35% and the B-pillar by 70.5%;
The application of 2200MPa ultra-high-strength steel effectively enhances vehicle safety in harsh conditions such as side impacts and rollovers, effectively reducing passenger compartment intrusion and the risk of occupant injury, thereby better protecting occupant safety.

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