Direct Hot Stamped Products

Shanghai Heda has taken the lead in achieving a mass‑production breakthrough in 2000 MPa‑grade ultra‑high‑strength direct hot stamping technology. Using high‑strength boron steel and a process comprising austenitization heating followed by in‑die intensive quenching, the resulting components achieve a tensile strength exceeding 2,000 MPa and a yield strength surpassing 1,500 MPa.

Building on this capability, we have deeply integrated hot‑stamped single/double door ring technology, consolidating more than ten discrete components – including A‑pillars, B‑pillars, rocker panels, and roof rails – into one or two integral ring‑shaped structural parts. This innovation eliminates extensive weld distortion, significantly improves body‑in‑white torsional stiffness and dimensional accuracy, and creates an uninterrupted "integrated survival space" under C‑NCAP / Euro NCAP 25% offset and side‑pole impact tests, completely resolving the stress concentration and fracture risks inherent in conventional multi‑piece welded structures.

This solution provides an impenetrable lateral shield for the battery pack in new energy vehicles, while achieving a vehicle‑level weight reduction of over 20% through thinner‑gauge substitution and high part integration – delivering a comprehensive leap in safety, lightweighting, and vehicle handling performance.