Steel having excellent weldability and impact toughness of welding zone
US10301707B2 · kind B2 · utility
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Key dates
| Filing date | Dec 26, 2013 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Feb 21, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a steel having excellent weldability and impact toughness in a welding zone comprising: by weight (wt.) %, carbon (C): 0.1% to 0.3%, manganese (Mn): 11% to 13%, iron (Fe) as a residual component thereof, and other inevitable impurities, and positive and negative segregation zones in a layered form. The positive segregation zone comprises austenite and epsilon martensite, and the negative segregation zone comprises, by area fraction, epsilon martensite of less than 5% and alpha martensite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.