White cast iron components are today used in central parts for pumps. The specifications and requirements applied for the white cast iron components are among the most stringent used within the iron foundry branch. One of the problems for the production of these components can be cracks. Because of this reason there are just a few iron foundries in Sweden that are able to cast the required high quality white cast iron components.

The project work has focused on reducing the cracks and to improve the machining properties of the casting. The experiments showed that molybdenum content and pouring temperature had an important influence on casting defects and machining of the casting components behaviour.