US Patent 11555231 Duplex stainless steel
Patent 11555231 was granted and assigned to Outokumpu on January, 2023 by the United States Patent and Trademark Office.
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Edits on 6 Apr, 2023
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Current Assignee
Patent Jurisdiction
Patent Number
115552310
Date of Patent
January 17, 2023
0Patent Application Number
143428650
Date Filed
September 5, 2012
0Patent Primary Examiner
CPC Code
Edits on 18 Jan, 2023
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US Patent 11555231 Duplex stainless steel
Article
The invention relates a duplex ferritic austenitic stainless steel having high formability utilizing the TRIP effect and high corrosion resistance with the balanced pitting resistance equivalent. The duplex stainless steel contains less than 0.04 weight % carbon, less than 0.7 weight % silicon, less than 2.5 weight % manganese, 18.5-22.5 weight % chromium, 0.8-4.5 weight % nickel, 0.6-1.4 weight % molybdenum, less than 1 weight % copper, 0.10-0.24 weight % nitrogen, the rest being iron and inevitable impurities occurring in stainless steels.
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
115552310
Date of Patent
January 17, 2023
0Patent Application Number
143428650
Date Filed
September 5, 2012
0Patent Primary Examiner
CPC Code
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