Ferritic stainless steel sheet having excellent corrosion resistance and method of manufacturing the same
US8465604B2 · kind B2 · utility
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Key dates
| Filing date | Jul 31, 2006 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Nov 1, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/005
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ferritic stainless steel sheet having excellent corrosion resistance and a method of manufacturing the steel sheet are provided. Specifically, the ferritic stainless steel sheet of the invention contains C of 0.03% or less, Si of 1.0% or less, Mn of 0.5% or less, P of 0.04% or less, S of 0.02% or less, Al of 0.1% or less, Cr of 20.5% to 22.5%, Cu of 0.3% to 0.8%, Ni of 1.0% or less, Ti of 4×(C %+N %) to 0.35%, Nb of less than 0.01%, N of 0.03% or less, and C+N of 0.05% or less, and has the remainder including Fe and inevitable impurities, wherein 240+35×(Cr %−20.5)+280×{Ti %−4×(C %+N %)}≧280 is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.