High performance bearing steels
US4150978A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1978 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | Apr 24, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A wear and corrosion resistant steel bearing and article are provided characterized by superior rolling contact fatigue life and consisting essentially of ______________________________________ C about 0.8 - 1.6% Si about 0.50% Max. Mn about 0.50% Max. S about 0.10% Max. P about 0.015% Max. Cr about 12 - 20% Mo about 2 - 5% W about Up to 3.0% V about 0.5% - 3.0% Ti about Up to 0.5% Al about 0.03% Max. Ni about 0.50% Max. Co about 0.50% Max. Cu about 0.50% Max. B about 0.05% Max. N about 0.05% Max. Fe + incidental Balance impurities ______________________________________ The steel is made by vacuum induction melting and forming into electrodes and then vacuum arc remelting said electrodes into an ingot for subsequent working into articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.