Quench and temper corrosion resistant steel alloy
US10458007B2 · kind B2 · utility
3Cited by
10References
9Claims
0Family size
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Key dates
| Filing date | Aug 12, 2016 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Aug 12, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/008
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A quench and temper steel alloy is disclosed having the following composition in weight percent. The balance of the alloy is iron and the usual impurities including not more than about 0.01% phosphorus, not more than about 0.010% sulful, and not more than about 0.10% nitrogen. A quenched and tempered steel article made from this alloy is also disclosed. The steel article is characterized by a tensile strength of at least about 290 ksi, a fracture toughness (kIc) of at least about 65 ksi, good resistance to general corrosion, and good resistance to pitting corrosion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.