Austenitic stainless steel casting alloy for corrosive applications
US4405389A · kind A · utility
3Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1982 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Oct 21, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/44
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An austenitic stainless steel casting alloy which exhibits superior corrosion resistance. The alloy contains a nominal 10 percent ferrite which exhibits an extremely high level of pitting and crevice corrosion resistance resulting from nitrogen additions in a proper combination of nominal 21 percent chromium, 12 percent nickel, 4 percent molybdenum and manganese content below 0.5 percent. To provide a required degree of solubility of nitrogen and to tie up the carbon, a nominal 0.15 percent of vanadium is added.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.