The resistance of cast iron to abrasive wear depends on the metal abrasive hardness ratio. For example, hardness of the structural
constituents of the cast iron metal matrix is lower than the hardness of ordinary silica sand. Also cementite, the basic component of
unalloyed white cast iron, has hardness lower than the hardness of silica. Some resistance to the abrasive effect of the aforementioned
silica sand can provide the chromium white cast iron containing in its structure a large amount of (Cr, Fe)7C3 carbides characterised by
hardness higher than the hardness of the silica sand in question. In the present study, it has been anticipated that the white cast iron
structure will be changed by changing the type of metal matrix and the type of carbides present in this matrix, which will greatly expand
the application area of castings under the harsh operating conditions of abrasive wear. Moreover, the study compares the results of
abrasive wear resistance tests performed on the examined types of cast iron. Tests of abrasive wear resistance were carried out on a Miller
machine. Samples of standard dimensions were exposed to abrasion in a double to-and-fro movement, sliding against the bottom of
a trough filled with an aqueous abrasive mixture containing SiC + distilled water. The obtained results of changes in the sample weight
were approximated with a power curve and shown further in the study.