Machinable and wear resistant valve seat insert alloy
US5256184A · kind A · utility
5Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Oct 16, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0264
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A powder composition is suitable for making a valve seat insert having good machinability and high temperature wear resistance. The composition consists essentially of about 0.5%-5% nickel, about 1%-10% molybdenum, less than 0.1% copper, about 0.4%-1.2% carbon, the remainder being iron. The ratio of nickel to molybdenum is about 0.25:1 to 1:1. The nickel and molybdenum are preferably present as a blend of elemental nickel, elemental molybdenum, and a pre-alloyed powder in which nickel and molybdenum are pre-alloyed with iron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.