| abstract |
The invention relates to a steel piston for internal combustion engines, comprising at least one piston upper part ( 12 ) provided with a combustion cavity ( 11 ) and an annular wall ( 5 ), and a piston lower part ( 13 ) provided with a connecting rod bearing ( 8 ). The steel piston is cast as a single component from a reduced-density steel alloy or a special steel alloy in the same material by means of a low-pressure casting method. |