logo

For the Inventor, By the Inventor

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.:

US 9862168 B1

PDFFull Text
Date of Patent:
Jan. 09, 2018

Filed:

Jan. 26, 2012

Alloying element-saving hot rolled duplex stainless steel material, clad steel plate having duplex stainless steel as cladding material therefor, and production method for same

Applicants:

Shinji Tsuge, Hikari, JP;

Yuusuke Oikawa, Hikari, JP;

Yoichi Yamamoto, Kitakyushu, JP;

Haruhiko Kajimura, Hikari, JP;

Kazuhiko Ishida, Kitakyushu, JP;

Inventors:

Shinji Tsuge, Hikari, JP;

Yuusuke Oikawa, Hikari, JP;

Yoichi Yamamoto, Kitakyushu, JP;

Haruhiko Kajimura, Hikari, JP;

Kazuhiko Ishida, Kitakyushu, JP;

Assignee:

NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Humera Sheikh

Assistant Examiner:

Lucas Wang

Int. Cl.
CPC ...
B32B 15/01 (2006.01); C22C 38/00 (2006.01); C22C 38/50 (2006.01); B23K 20/04 (2006.01); C21D 8/02 (2006.01); B21B 3/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/52 (2006.01); C22C 38/54 (2006.01); C22C 38/58 (2006.01);
U.S. Cl.
CPC ...
B32B 15/011 (2013.01); B21B 3/00 (2013.01); B23K 20/04 (2013.01); B32B 15/01 (2013.01); C21D 8/0226 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/005 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/52 (2013.01); C22C 38/54 (2013.01); C22C 38/58 (2013.01); Y10T 428/12965 (2015.01);
Abstract

This alloying element-saving hot rolled duplex stainless steel material contains, by mass %, C: 0.03% or less, Si: 0.05% to 1.0%, Mn: 0.5% to 7.0%, P: 0.05% or less, S: 0.010% or less, Ni: 0.1% to 5.0%, Cr: 18.0% to 25.0%, N: 0.05% to 0.30% and Al: 0.001% to 0.05%, with a remainder being Fe and inevitable impurities, wherein the alloying element-saving hot rolled duplex stainless steel material is produced by hot rolling, a chromium nitride precipitation temperature TN is in a range of 960° C. or lower, a yield strength is 50 MPa or more higher than that of a hot rolled steel material which is subjected to a solution heat treatment, and the alloying element-saving hot rolled duplex stainless steel material is as hot rolled state, and is not subjected to a solution heat treatment. This clad steel plate includes a duplex stainless steel as a cladding material, the duplex stainless steel has the above composition, and the chromium nitride precipitation temperature TN is in a range of 800° C. to 970° C.

Find Patent Forward Citations

Tsuge, Shinji. (2018). Alloying element-saving hot rolled duplex stainless steel material, clad steel plate having duplex stainless steel as cladding material therefor, and production method for same (U.S. Patent No. 9862168). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9862168

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…