Two-piece piston (1, 1', 1") for an internal combustion engine, - consisting of a piston base body (2, 2', 2") and a ring element (3, 3', 3"), - whereby the piston base body (2, 2', 2") has a round, substantially plate-shaped centre part (9, 9', 9"), the radial diameter of which is at least approximately identical to the radial diameter of the piston (1, 1', 1"), - whereby, on the lower side of the centre part (9, 9', 9"), there are formed two skirt elements lying opposite one another and two pin bosses lying opposite one another and connecting the skirt elements with one another, and - whereby, on the upper side of the centre part (9, 9', 9"), there is formed a circumferential ring rib that is set back in the direction of the piston axis relative to the radially outer edge of the centre part (9, 9', 9") and that forms the radially outer limit of a combustion bowl, - whereby the ring element (3, 3', 3") has a ring part on its radially outer surface, and - whereby the ring element (3, 3', 3") is soldered to the piston base body (2, 2', 2") by an upper solder connection (23, 32) of length b and arranged on the radially inner side of a piston head formed at least partially from the ring element (3, 3', 3"), and by a lower solder connection (24, 24', 33) of length c and arranged radially outwardly on the upper side of the centre part (9, 9', 9"), characterized in that, the ring element (3, 3', 3") has, on the one hand, a circumferential, upper, thinned wall region in the region of the piston head radially outward of the upper solder connection (23, 32) and, on the other hand, a circumferential, lower, thinned wall region (50, 50') between the ring part and the lower solder connection (24, 24', 33), whereby the thickness (a) of the upper thinned wall region has a lower value than the length (b) of the upper solder connection (23, 32) and whereby the thickness (d) of the lower thinned wall region (50, 50') has a lower value than the length (c) of the lower solder connection (24, 24', 33). - consisting of a piston base body (2, 2', 2") and a ring element (3, 3', 3"), - whereby the piston base body (2, 2', 2") has a round, substantially plate-shaped centre part (9, 9', 9"), the radial diameter of which is at least approximately identical to the radial diameter of the piston (1, 1', 1"), - whereby, on the lower side of the centre part (9, 9', 9"), there are formed two skirt elements lying opposite one another and two pin bosses lying opposite one another and connecting the skirt elements with one another, and - whereby, on the upper side of the centre part (9, 9', 9"), there is formed a circumferential ring rib that is set back in the direction of the piston axis relative to the radially outer edge of the centre part (9, 9', 9") and that forms the radially outer limit of a combustion bowl, - whereby the ring element (3, 3', 3") has a ring part on its radially outer surface, and - whereby the ring element (3, 3', 3") is soldered to the piston base body (2, 2', 2") by an upper solder connection (23, 32) of length b and arranged on the radially inner side of a piston head formed at least partially from the ring element (3, 3', 3"), and by a lower solder connection (24, 24', 33) of length c and arranged radially outwardly on the upper side of the centre part (9, 9', 9"),