Soft cold-rolled steel sheet and method for making the same
US6171413A · kind A · utility
5Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1998 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Jul 16, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A soft cold-rolled steel sheet contains: 0.06 wt. % or less C, 0.1 wt. % or less Si, 0.5 wt. % or less Mn, 0.03 wt. % or less P, 0.03 wt. % or less S, 0.006 wt. % or less N, 0.009 wt. % or less B and the balance being Fe. The method comprises the steps of: continuously casting a steel to produce a slab; hot-rolling the slab to form a hot-rolled steel sheet; cold-rolling the hot-rolled steel sheet to produce a cold-rolled steel sheet; and continuously annealing the cold-rolled steel sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.