The paper describes the verification of casting and solidification of heavy slab ingot weighing 40 t from tool steel by
means of numerical modelling with use of a finite element method. The pre-processing, processing and post-processing
phases of numerical modelling are outlined. Also, the problems with determination of the thermodynamic
properties of materials and with determination of the heat transfer between the individual parts of the casting
system are discussed. The final porosity, macrosegregation and the risk of cracks were predicted. The results allowed
us to use the slab ingot instead of the conventional heavy steel ingot and to improve the ratio, the chamfer and the
external shape of the wall of the new design of the slab ingot.Web of Science55339839