Method of producing ferritic stainless steel strip with small intra-face anisotropy
US5505797A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1995 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Mar 27, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/0405
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of producing a ferritic stainless steel strip having reduced intra-face anisotropy as well as excellent r value and anti-ridging characteristics. The method involves subjecting a ferritic stainless steel slab to a hot rolling step including rough rolling having at least one rough rolling pass and a finish rolling having at least one finish rolling pass, followed by a hot-rolled sheet annealing, pickling, cold rolling and finish annealing. At least one of the passes in the rough rolling is conducted with the rolling temperature between about 970.degree. C. to about 1150.degree. C., the friction coefficient between the rolls and the rolled material of about 0.3 or less, and the rolling reduction ratio between about 40 to about 75%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.