ACO Eurobar EN-GJL-250C (5.1203) is an intermediate-tensile-strength gray cast iron that is produced by the continuous casting process. Compared with the lower strength gray cast iron grade, EN-GJL-200C (5.1202), it possesses superior wear resistance, while still maintaining good thermal conductivity, damping capacity, and machinability. Brinell hardness values in Table 3 corrected September 2022. This datasheet provides information on composition, physical properties, microstructure, hardness, and tensile properties. It also includes information on heat treating and machining. Filing Code: CI-94. Producer or source: ACO Eurobar GmbH (a subsidiary of ACO Guss GmbH).