Case hardenable nickel-cobalt steel
US8157931B2 · kind B2 · utility
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Key dates
| Filing date | Jul 1, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jul 1, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/46
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An advanced secondary hardening carburized Ni—Co steel achieves an improved case hardness of about 68-69 Rc together with nominal core hardness of about 50 Rc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.