Free machining steel
US4004922A · kind A · utility
12Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1975 |
| Grant date | Jan 25, 1977 |
| Priority date | — |
| Expiry date | Sep 3, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/60
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Free machining low alloy steel compositions are prepared by addition of very small quantities of at least magnesium to previously deoxidized steel to provide a homogeneous distribution of globular sulfides and sulfurous inclusions of the additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.