Steel excellent in resistance to sulfuric acid dew point corrosion
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United States of America Patent
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Jan 29, 2013
Grant Date -
Jul 10, 2008
app pub date -
Feb 24, 2006
filing date -
Feb 28, 2005
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Abstract
The present invention provides a steel material able to secure a superior corrosion resistance in a sulfuric acid dew point corrosive environment of exhaust gas obtained by burning high S-containing fuel, containing, by mass %, C: ≦0.010%, Si: ≦0.10%, Cu: 0.05 to 1.00%, P: ≦0.030%, S: ≦0.050%, and Al: ≦0.10% and comprising a balance of Fe and unavoidable impurities. Further, this steel contains one type or two types or more of Sb, Sn, Cr, Mn, Mo, Ni, Nb, V, Ti, and B.
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