Method of manufacture of multiphase, cold-rolled ultra-high strength steel
US10968502B2 · kind B2 · utility
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Key dates
| Filing date | Nov 3, 2017 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Sep 15, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/008
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A cold-rolled ultra-high strength, multi-phase structured steel is disclosed with improved stamping and forming performance during manufacturing processes, while possessing one or more of the following properties: excellent castability and rollability, excellent galvanizability and/or coatability, excellent formability, excellent fracture resistance, excellent stretch formability and stretch flangeability, excellent dent resistance, excellent durability, excellent impact performance and structural performance, excellent intrusion and crash resistance, and excellent weldability, without the purposeful addition of boron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.