US Patent 7731895 Austenitic Fe-Ni-Cr alloy
Patent 7731895 was granted and assigned to Sumitomo Metal Industries on June, 2010 by the United States Patent and Trademark Office.
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Patent abstract
An austenitic stainless steel improved in creep strength, creep ductility, weldability and also hot workability. The steel, consisting of, by mass %, C: 0.05-0.15%, Si: not more than 2%, Mn: 0.1-3%, P: 0.05-0.30%, S: not more than 0.03%, Cr: 15-28%, Ni: 8-55%, Cu: 0-3.0%, Ti: 0.05-0.6%, REM: 0.001-0.5%, sol. Al: 0.001-0.1%, N: not more than 0.03%, and the balance being Fe and incidental impurities. This steel may contain one or more of Mo, W, B, Nb, V, Co, Zr, Hf, Ta, Mg and Ca. It is preferable that REM is Nd.
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US Patent 07731895 Austenitic Fe-Ni-Cr alloy US Patent 7731895 Austenitic Fe-Ni-Cr alloy
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Patent Number
0773189500
Patent Number
773189500
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
077318950
Date of Patent
June 8, 2010
0Patent Application Number
119057070
Date Filed
October 3, 2007
0Official Website
Patent Primary Examiner
Edits on 22 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
077318950
Date of Patent
June 8, 2010
0Patent Application Number
119057070
Date Filed
October 3, 2007
0Official Website
Patent Primary Examiner
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US Patent 07731895 Austenitic Fe-Ni-Cr alloy
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07731895
Date of patent
June 8, 2010
Patent application number
11905707
Date Filed
October 3, 2007
Patent primary examiner
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