Method for the production of cold rolled steel sheet having super deep drawability
US4504326A · kind A · utility
17Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1983 |
| Grant date | Mar 12, 1985 |
| Priority date | — |
| Expiry date | Oct 6, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/0478
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method for the production of a cold rolled steel sheet which has a distinguished deep drawability as well as chemical treating ability by the steps of providing a very low carbon steel, adding Ti and Nb in combination to said steel, hot rolling and cold rolling said steel to produce a cold rolled steel sheet, and subjecting said cold rolled steel sheet to a continuous anneal at a temperature of more than 700.degree. C. to less than the Ac.sub.3 transformation point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.