The article shows results of studies of primary crystallization and wear resistance of Cr-Ni-Mo cast steel intended for work in corrosive
and abrasive conditions. The studies of primary crystallization were conducted with use of TDA method and modified tester allowing
measurement casting cooling time influence on the cooling and crystallization curves of studied alloys. After heat treatment of examined
cast steel wear tests of the samples were conducted on pin-on-disc type device.
In the paper the results and analysis of abrasive wear studies were shown for two grades of cast steels: low-alloyed cast steel applied for
heavy machinery parts such as housing, covers etc. and chromium cast steels applied for kinetic nodes of pin-sleeve type. Studies were
performed using the modified in Department of Foundry pin-on-disc method.