Invention Grant
- Patent Title: Duplex stainless steel
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Application No.: US14342865Application Date: 2012-09-05
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Publication No.: US11555231B2Publication Date: 2023-01-17
- Inventor: James Oliver , Jan Y. Jonsson , Alexander Thulin
- Applicant: James Oliver , Jan Y. Jonsson , Alexander Thulin
- Applicant Address: SE Fjärdhundra; SE Avesta; SE Luleå
- Assignee: James Oliver,Jan Y. Jonsson,Alexander Thulin
- Current Assignee: James Oliver,Jan Y. Jonsson,Alexander Thulin
- Current Assignee Address: SE Fjärdhundra; SE Avesta; SE Luleå
- Agency: Quinn IP Law
- Priority: FI20110291 20110907
- International Application: PCT/FI2012/050858 WO 20120905
- International Announcement: WO2013/034804 WO 20130314
- Main IPC: C22C38/40
- IPC: C22C38/40 ; C22C38/02 ; C22C38/42 ; C22C38/44 ; C22C38/00 ; C22C38/04 ; C21D6/00 ; C22C38/58 ; C22C38/22
Abstract:
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.
Public/Granted literature
- US20140219856A1 DUPLEX STAINLESS STEEL Public/Granted day:2014-08-07
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