Stainless steel and production method therefor
US10626486B2 · kind B2 · utility
0Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2015 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Apr 3, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/008
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Stainless steel that has excellent formability and ridging resistance and can be produced with high productivity is provided. The stainless steel comprises: a chemical composition containing, in mass %, C: 0.005% to 0.050%, Si: 0.01% to 1.00%, Mn: 0.01% to 1.0%, P: 0.040% or less, S: 0.010% or less, Cr: 15.5% to 18.0%, Ni: 0.01% to 1.0%, Al: 0.001% to 0.10%, and N: 0.005% to 0.06%, with a balance being Fe and incidental impurities; and a microstructure containing a martensite phase of 1% to 10% in volume fraction with respect to a whole volume of the microstructure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.