Ferritic stainless steel alloy and its use as a substrate for catalytic converters
US6905651B2 · kind B2 · utility
1Cited by
12References
2Claims
0Family size
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Key dates
| Filing date | Nov 8, 2002 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Apr 26, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/18
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ferritic stainless steel alloy useful as a substrate for catalytic converter material consists of, by weight: 15-21% Cr, 8-12% Al, 0.01-0.09% Ce, 0.02-0.1% total of REM, and possible minor amounts of further elements, other than the ones mentioned, the balance being Fe with normally occurring impurities. These alloys have managed to combine a high content of Al with a good hot and cold workability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.