Very high mechanical strength steel and method for making a sheet thereof coated with zinc or zinc alloy
US7976647B2 · kind B2 · utility
3Cited by
1References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 4, 2003 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | May 24, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12799
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention concerns a very high mechanical strength steel, whereof the chemical composition comprises in wt. %: 0.006%=C=0250%; 0.400%=Mn=0.950%; Si=0.300%; Cr=0.300%; 0.100%=Mo=0.500%; 0.020%=AI=0.100%; P=0.100%; B=0.010%; Ti=0.050%, the rest being iron and impurities resulting from preparation. The invention also concerns a method for making a sheet of said steel coated with zinc or zinc alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.