Coated steel substrate, a method for the manufacture of a coated steel substrate, a method for manufacture of a steel product and a steel product
US12359293B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 20, 2020 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Feb 3, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C14/35
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coated steel substrate coated with a first coating including above 40 wt. % of chromium and optionally one or several elements chosen from yttrium, silicon, calcium, titanium, zirconium, vanadium, niobium and nickel in an amount below 10 wt. % for each element, the balance being chromium and a second coating including from 2 to 30 wt. % of Aluminum, from 10 to 40 wt. % of chromium and optionally one or several elements chosen from yttrium, silicon, calcium, titanium, zirconium, vanadium, niobium and nickel in an amount below 10 wt. % for each element, the balance being iron, the steel substrate including Cr≤2.0% by weight; a method for the manufacture of this coated steel substrate; a method for the manufacture of a coated hot steel product; a coated hot steel product and the use of a hot steel product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.