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:
Jan. 22, 2019
Filed:
Aug. 22, 2013
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Naoki Sawawatari, Tokyo, JP;
Koichi Kuroda, Tokyo, JP;
Masaki Ueyama, Tokyo, JP;
Yusuke Ugawa, Tokyo, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
A dual phase stainless steel pipe includes tensile yield strength YSof 689.1 MPa to 1000.5 MPa in a pipe axis direction of the dual phase stainless steel pipe, in which the tensile yield strength YS, a compressive yield strength YSin the pipe axis direction, a tensile yield strength YSin a pipe circumferential direction of the dual phase stainless steel pipe, and a compressive yield strength YSin the pipe circumferential direction satisfy all Expressions (1) to (4),0.90≤YS/YS≤1.11  (1)0.90≤YS/YS≤1.11  (2)0.90≤YS/YS≤1.11  (3)0.90≤YS/YS≤1.11  (4).