Steel compositions having improved anti-coking properties
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United States of America Patent
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Jun 27, 2023
Grant Date -
Dec 8, 2022
app pub date -
Feb 25, 2022
filing date -
Feb 2, 2016
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Abstract
Special usage steels, particularly those intended to be in contact with combustion fumes, are described. Tubular components produced based on such steels are also described. The steel both is resistant to the coking phenomenon and has improved mechanical performances. The steel contains in percentage by weight from 0.08 to 0.15% carbon, from 0.4 to 0.8% manganese, from 1.5 to 2.5% silicon, from 0.5 to 2% copper, from 8 to 10% chrome, from 0.5 to 3% nickel, from 0.01 to 0.07% nitrogen, from 0.8 to 1.1% molybdenum, with the remainder being iron and impurities.
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