Ultra-thin ultra-high strength steel wire, wire rod and method of producing wire rod
US12398450B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 19, 2019 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Jul 16, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention reveals an ultra-thin ultra-high strength steel wire, a wire rod for an ultra-thin ultra-high strength steel wire and its producing method. The chemical components of the wire rod comprise in percentage by mass: C 0.90˜0.96%, Si 0.12˜0.30%, Mn 0.30˜0.65%, Cr 0.10˜0.30%, Al≤0.004%, Ti≤0.001%, Cu≤0.01%, Ni≤0.01%, S≤0.01%, P≤0.01%, O≤0.0006%, N≤0.0006%, and the balance is Fe and unavoidable impurity elements. The wire rod for the ultra-thin ultra-high strength steel wire may be used as a base material for producing the ultra-thin ultra-high strength steel wire having a diameter in a range of 50˜60 μm and a tensile strength larger than or equal to 4500 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.