Invention Grant
- Patent Title: X80 pipeline steel with good strain-aging performance, pipeline tube and method for producing same
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Application No.: US15559048Application Date: 2015-09-16
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Publication No.: US11053563B2Publication Date: 2021-07-06
- Inventor: Mingzhuo Bai , Lei Zheng , Leilei Sun , Guodong Xu , Kougen Wu , Haisheng Xu
- Applicant: BAOSHAN IRON & STEEL CO., LTD.
- Applicant Address: CN Shanghai
- Assignee: BAOSHAN IRON & STEEL CO., LTD.
- Current Assignee: BAOSHAN IRON & STEEL CO., LTD.
- Current Assignee Address: CN Shanghai
- Agency: Thomas Horstemeyer, LLP
- Priority: CN201510125587.3 20150320
- International Application: PCT/CN2015/089696 WO 20150916
- International Announcement: WO2016/150116 WO 20160929
- Main IPC: C22C38/50
- IPC: C22C38/50 ; C22C38/48 ; C22C38/06 ; C22C38/58 ; C21D9/08 ; C21D8/10 ; C21D6/00 ; C21D1/18 ; C22C38/14 ; B21B1/02 ; B21B1/04 ; B21B1/46 ; B21B45/02 ; C22C38/00 ; C22C38/02
Abstract:
A X80 pipeline steel with good strain-aging performance comprises (wt. %): C: 0.02-0.05%; Mn: 1.30-1.70%; Ni: 0.35-0.60%: Ti: 0.005-0.020%; Nb: 0.06-0.09%; Si: 0.10-0.30%; Al: 0.01-0.04%; N≤0.008%; P≤0.012%; S≤0.006%; Ca: 0.001-0.003%, and balance iron and unavoidable impurities.
Public/Granted literature
- US20180073094A1 X80 PIPELINE STEEL WITH GOOD STRAIN-AGING PERFORMANCE, PIPELINE TUBE AND METHOD FOR PRODUCING SAME Public/Granted day:2018-03-15
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