Cold rolled steel sheet having excellent corrosion resistance to sulfuric acid
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United States of America Patent
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Aug 10, 2004
Grant Date -
Oct 17, 2002
app pub date -
Feb 4, 2002
filing date -
Jun 5, 2000
priority date (Note) -
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Abstract
A cold rolled steel sheet which has an excellent corrosion resistance to sulfuric acid, the steel includes in weight %: 0.15% or less of C, 1.0% or less of Si, 0.2.about.1.5% of Mn, 0.03% or less of S, 0.03% or less of P, 0.01.about.0.1% of Al, 0.2.about.1.0% of Cu, 0.02.about.0.2% of Co, and a balance of Fe and other unavoidable impurities.
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