Steel, steel wire, and process for forming drawn wire of steel
US6048416A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 29, 1999 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Apr 29, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12924
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Steel, steel wire, and a process for forming a drawn wire, especially tire-reinforcing wire of diameter smaller than 0.4 mm, by drawing a steel of the following composition by weight: 0.005%.ltoreq.carbon.ltoreq.0.050%; 0.005%.ltoreq.nitrogen.ltoreq.0.050%; 0.1%.ltoreq.silicon.ltoreq.2.0%; 0.1%.ltoreq.manganese.ltoreq.5%; 5%.ltoreq.nickel.ltoreq.12%; 10%.ltoreq.chromium.ltoreq.20%; 0.01%.ltoreq.copper.ltoreq.4%; 0.01%.ltoreq.molybdenum.ltoreq.3%, PA1 the base wire being subjected to: PA2 drawing to a cumulative deformation ratio .epsilon. of larger than 2 and smaller than 4, PA2 an intermediate annealing treatment at above 700.degree. C. PA2 final drawing to a cumulative deformation ratio .epsilon. of smaller than 4.5 and larger than 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.