Tungsten carbide-based hard metals
US4339272A · kind A · utility
5Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1980 |
| Grant date | Jul 13, 1982 |
| Priority date | — |
| Expiry date | Jun 25, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C29/067
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A tungsten carbide-based hard metal comprises 75-97 weight % tungsten carbide. The balance is binder. To avoid using cobalt binder as is conventional, a typical binder composition is 14 weight % manganese, 21/2% carbon, 5% nickel and balance iron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.