Stainless steel alloys, turbocharger turbine housings formed from the stainless steel alloys, and methods for manufacturing the same
US9499889B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Feb 24, 2014 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Feb 22, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/177
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is an ferritic stainless steel alloy that includes, by weight, about 20% to about 22% chromium, about 0% to about 0.5% nickel, about 0.5% to about 1.0% manganese, about 1.0% to about 2.5% silicon, about 1.5% to about 2.2% tungsten, about 1.3% to about 1.8% niobium, about 0.35% to about 0.45% carbon, and a balance of iron. The alloy is suitable for use in turbocharger turbine housing applications for temperature up to about 1050° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.