Phosphorus containing steel powder and a method of manufacturing the same
US4126452A · kind A · utility
11Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1977 |
| Grant date | Nov 21, 1978 |
| Priority date | — |
| Expiry date | Jun 24, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0207
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
New phosphorus-containing steel powders for use in the manufacture of sintered components of high toughness are described which comprise steel powder substantially free of phosphorus and having good compressibility, and in intimate admixture therewith, a ferrophosphorus powder having a phosphorus content of at least about 2.8% by weight and preferably about 12 to 17%, in proportions to provide a phosphorus content in the final powder of from about 0.2 to 1.5% by weight, the ferrophosphorus powder containing at least about 0.3% carbon and preferably about 0.5 to 2.5% and having a maximum particle size of about 10 to 20 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.