Heat-resistant austenitic stainless steel
US4999159A · kind A · utility
10Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1990 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Feb 13, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/44
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A heat-resistant austenitic stainless steel is disclosed. This steel essentially consists of: not more than 0.06% C, 1-4% Si, 0.5-4% mn, not more than 0.035% P, not more than 0.005% S, 10-17% Ni, 14-20% Cr, 1-4% Mo, 0.01-0.5% Al, not more than 0.035% N, and balance essentially Fe, and may further contain small amounts of any of Cu, REM and B and the composition thereof is adjusted so that a limited amount of .delta.-ferrite appears in solidification. The steel has excellent hot salt corrosion resistance, weldability, salt errosion resistance of the weld and hot-workability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.