WELDED COMPONENT COMPRISING SEAMLESS BENT PIPE AND SEAMLESS STRAIGHT PIPE SECTIONS AND METHODS OF MANUFACTURING THEREOF

摘要

Provided are a seamless bent pipe constituted by a bentsection and straight pipe sections on both ends of the bentsection, with the inside diameter at each pipe end portion beinglarger than the inside diameter of the bent section, and a weldedcomponent comprising a seamless bent pipe and a seamlessstraight pipe at one or each end of the seamless bent pipe, withthe end of the seamless straight pipe to be welded to one oreach end of the seamless bent pipe having the same insidediameter as the inside diameter of the seamless bent pipe, aswell as methods of manufacturing them. As a result, elementssuited for use in pipelines can be obtained, withoutunnecessarily increasing the wall thickness of the seamlessbent pipe and without internal machining of the pipe endportions of the seamless bent pipe after the manufacturingthereof.