Cutting-free bronze alloys
US6419766B1 · kind B1 · utility
7Cited by
4References
2Claims
0Family size
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Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Nov 28, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2204/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A cutting-free bronze alloy which is substantially free of lead contains 1 to 13 wt. % of tin, not larger than 18 wt. % of zinc, 0.5 to 6 wt. % of bismuth, 0.05 to 3 wt. % of antimony, not larger than 1 wt. % of phosphorus, less than 0.4 wt. % of lead, and the balance being copper. The alloy may further contain 0.1 to 3 wt. % of nickel. When 3 to 8 wt. % of tin and 6 to 10 wt. % of zinc are present, the alloy is particularly suitable for use as a plumbing faucet and fixture. Likewise, when 8.5 to 13 wt. % of tin and not larger than 1 wt. % of zinc are present, the alloy is suitable for use as a sliding member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.