Nonmagnetic alloy steel having improved machinability
US4240827A · kind A · utility
10Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1978 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Dec 11, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A nonmagnetic alloy steel containing by weight 5 to 30% Mn and 0.005 to 0.5% N (nitrogen), satisfying the condition that 100/9(C%+N%)+2(Mn%+Cu%) is more than 25% and containing at least one element to improve the machinability of the steel. Since the steel contains no Ni, the steel is inexpensive and can be used for bars for reinforcing concrete and bolts for civil engineering works and buildings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.