Austenitic stainless steel sheet and metal gasket
US10060003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2015 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Aug 14, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/001
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hot rolled austenitic stainless steel sheet contains 0.030 to 0.300% of C, from 0.30 to 3.20% of Si, from 0.90 to 17.00% of Mn, from 1.00 to 8.00% of Ni, from 14.00 to 19.00% of Cr, from 0.50 to 3.50% of Cu, from 0.045 to 0.250% of N, from 0.0001 to 0.0300% of Al, from 0 to 0.50% of V, from 0 to 0.50% of Nb, from 0 to 0.30% of Ti, and from 0 to 0.010% of B, all in terms of percentage by mass, with the balance of Fe and unavoidable impurities, has a converted average composition of an oxide based inclusion that contains 30% by mass or less of Al2O3, 60% by mass or less of SiO2, and 15% by mass or more of MnO, and satisfies MnO3—3SiO2+110. Anisotropy of workability and fatigue resistance characteristics caused by an oxide based inclusion is decreased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.