Invention Grant
- Patent Title: Nickel-based alloy tubes and method for production thereof
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Application No.: US16074531Application Date: 2017-02-02
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Publication No.: US10774411B2Publication Date: 2020-09-15
- Inventor: Alejandra López , Urbano Faina
- Applicant: TUBACEX INNOVACION A.I.E. , IBF S.P.A.
- Applicant Address: ES Derio-Vizcaya IT Cornate d'Adda (MB)
- Assignee: TUBACEX INNOVACION A.I.E.,IBF S.P.A.
- Current Assignee: TUBACEX INNOVACION A.I.E.,IBF S.P.A.
- Current Assignee Address: ES Derio-Vizcaya IT Cornate d'Adda (MB)
- Agency: Carmody Torrance Sandak & Hennessey LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3a6d529f
- International Application: PCT/EP2017/052299 WO 20170202
- International Announcement: WO2017/134184 WO 20170810
- Main IPC: C22F1/10
- IPC: C22F1/10 ; C21D9/14 ; C22C19/00 ; C21D8/10 ; B21B3/00 ; C22C19/05

Abstract:
A method for producing a tube of a nickel-based alloy tube which comprises the steps of hot working a nicked-based alloy casting into a pretubular-shaped workpiece or into a cylindrical bar, trepanning the cylindrical bar or machining an inner diameter of the pretubular-shaped workpiece to obtain a tubular workpiece, and cold working the tubular workpiece. The hot working comprises one of: rolling, forging, and a combination thereof. The cold working comprises flow forming or pilgering. A nickel-based alloy tube produced with the method comprises an outer diameter greater than or equal to 60.3 mm, an average wall thickness greater than or equal to 2.8 mm, and less than or equal to 70 mm.
Public/Granted literature
- US20190040509A1 Nickel-Based Alloy Tubes and Method for Production Thereof Public/Granted day:2019-02-07
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