Method for continuous casting of highly ductile ferritic stainless steel strips between rolls, and resulting thin strips
US6588494B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Dec 10, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/0415
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a process for the casting of thin strip having a thickness of less than 10 mm, made of ferritic stainless steel, directly from liquid metal between two rotating cooled rolls having parallel horizontal axes, characterized in that:the said ferritic stainless steel contains (in percentages by weight) from 11 to 18% chromium, less than 1% manganese, less than 1% silicon and less than 2.5% molybdenum;the said ferritic stainless steel has carbon and nitrogen contents, the sum of the contents not exceeding 0.05%;the said ferritic stainless steel contains at least one of the stabilizing elements titanium, niobium, zirconium and aluminium and the sum of their contents is between 0.05 and 1%;the other elements present are iron and the usual impurities resulting from the smelting.The subject of the invention is also thin strip capable of being obtained by the above process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.