Corrosion resistant magnetic alloy an article made therefrom and a method of using same
US6616125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Jun 14, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/147
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A corrosion resistant, soft magnetic, ferritic steel alloy, a useful article made therefrom, and a method of using the alloy are described. The alloy has the following composition in weight percent.C0.005-0.040Mn 1.0 max.Si 1.0 max.P0.050 max.S0.020 max.Cr 27.0-30.0Ni 0.35 max.Mo 0.35 max.Cu 0.35 max.Co 0.25 max.N0.010-0.05The balance is essentially iron and the usual impurities found in similar grades of ferritic stainless steels. In accordance with another aspect of this invention, there is disclosed a magnetic component for a magnetically actuated device such as a solenoid valve wherein the magnetic component is formed of the aforesaid alloy. In accordance with a further aspect of this invention, there is disclosed a solenoid valve that incorporates a movable magnetic core that is formed of the aforesaid alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.