LEAN DUPLEX STAINLESS STEEL HAVING EXCELLENT BENDING PROCESSABILITY
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United States of America Patent
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Issued Date -
Jun 13, 2019
app pub date -
Jul 31, 2017
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Aug 10, 2016
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Provided is a lean duplex stainless steel having excellent bending processability. The lean duplex stainless steel includes, in percent (%) by weight of the entire composition, 0.01 to 0.06% of carbon (C), 0.2 to 1.0% of silicon (Si), 3.5 to 6.5% of manganese (Mn), 18.5 to 22.5% of chromium (Cr), 0.05 to 0.25% of nitrogen (N), and the remainder of iron (Fe) and other inevitable impurities, wherein a sum of amounts of Cr and Mn is from 26.0 to 28.5% and a Cr/Mn ratio is from 3.4 to 4.1.
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