The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Sep. 16, 2015
Applicant:
Baoshan Iron & Steel Co., Ltd., Shanghai, CN;
Inventors:
Mingzhuo Bai, Shanghai, CN;
Lei Zheng, Shanghai, CN;
Leilei Sun, Shanghai, CN;
Guodong Xu, Shanghai, CN;
Kougen Wu, Shanghai, CN;
Haisheng Xu, Shanghai, CN;
Assignee:
Baoshan Iron & Steel Co., Ltd., Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/50 (2006.01); C22C 38/48 (2006.01); C22C 38/06 (2006.01); C22C 38/58 (2006.01); C21D 9/08 (2006.01); C21D 8/10 (2006.01); C21D 6/00 (2006.01); C21D 1/18 (2006.01); C22C 38/14 (2006.01); B21B 1/02 (2006.01); B21B 1/04 (2006.01); B21B 1/46 (2006.01); B21B 45/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01);
U.S. Cl.
CPC ...
C21D 9/08 (2013.01); B21B 1/026 (2013.01); B21B 1/04 (2013.01); B21B 1/463 (2013.01); B21B 45/0203 (2013.01); C21D 1/18 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/10 (2013.01); C21D 8/105 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/14 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/58 (2013.01); B21B 2001/028 (2013.01); C21D 2211/002 (2013.01); C21D 2211/005 (2013.01);
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.