High strength cold rolled steel sheet and method for manufacturing the same
US9039847B2 · kind B2 · utility
2Cited by
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5Claims
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Key dates
| Filing date | Jul 27, 2010 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Jul 27, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/008
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A multiphase steel sheet has a steel composition containing, in percent by mass, more than 0.015% to less than 0.100% of carbon, less than 0.40% of silicon, 1.0% to 1.9% of manganese, more than 0.015% to 0.05% of phosphorus, 0.03% or less of sulfur, 0.01% to 0.3% of soluble aluminum, 0.005% or less of nitrogen, less than 0.30% of chromium, 0.0050% or less of boron, less than 0.15% of molybdenum, 0.4% or less of vanadium, 0.02% or less of titanium, wherein [Mneq] is 2.0 to 2.8, the balance being iron and incidental impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.