High toughness and high tensile strength thick steel plate and production method therefor
US10443110B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Sep 9, 2014 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Dec 8, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/58
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A high toughness and high tensile strength thick steel plate has a plate thickness of 100 mm or more, wherein a reduction of area in a center of the plate thickness by tension in a plate thickness direction is 40% or more. Thus, a high tensile strength thick steel plate with excellent strength and toughness in a center of the plate thickness can be obtained with no need for a larger production line, even in the case of producing a high strength thick steel plate for which the addition amount of alloying element needs to be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.