Abstract: A metallic packing is used to seal a connection between steam pipes. The metallic packing has an annular basement. This annular basement has an opening that joins the holes of the steam pipes. Two annular lips project from an inner circumference of the annular basement towards a central axis of the opening. Each annular lip steps away form the other lip, and the distance between free ends of the lips is longer than the width of the annular basement along the direction of the central axis.

Abstract: A metallic packing (1) according to the present invention is used to seal a connection between steam pipe (50a) and another steam pipe (50b). This metallic packing has an annular basement (3) that has an opening (2) that joins holes (51 and 54) of the steam pipes (50a and 50b), and annular lips (4 and 5) that forms a pair and project from inner circumference of the annular basement (3) towards a central axis of the opening (2). Each annular lip (4 and 5) steps away from the other lip, and the distance (H) between free ends (4a and 5a) of the lips (4 and 5) is longer than the width (D) of the annular basement (3) along the direction of the central axis.