Tube plug and method for plugging a tubular member.

摘要

Tube plug (200) and method for plugging a heat tubular. member (160) having an inner wall (190), which tube plug (200) has a reduced susceptibility to stress corrosion cracking. The tube plug (200) includes a shell (230) having a closed end (250), an open end (260) and an outer wall (280), the shell (230) defining a chamber (270) therein in communication with the open end (260) of the shell (230). Disposed in the chamber (230) is an expander member (290) for expanding the outer wall (280) of the shell (230) into sealing engagement with the inner wall (190) of the tubular member (160). A sealing member (360) engages the expander member (290) and is disposed across the open end (260) of the shell (230) for sealing the chamber (270) defined by the shell (230) so that fluid cannot enter the chamber (270) to corrosively attack the shell (230).