Patent ID: 10184160

Abstract:
A dual phase stainless steel pipe includes tensile yield strength YSLT of 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 YSLT, a compressive yield strength YSLC in the pipe axis direction, a tensile yield strength YSCT in a pipe circumferential direction of the dual phase stainless steel pipe, and a compressive yield strength YSCC in the pipe circumferential direction satisfy all Expressions (1) to (4), 0.90≤YSLC/YSLT≤1.11  (1)0.90≤YSCC/YSCT≤1.11  (2)0.90≤YSCC/YSLT≤1.11  (3)0.90≤YSCT/YSLT≤1.11  (4).