The main objective of this work is to develop a finite element program for thermal stress analysis in axissimetric problems. Once a load force vector, a thermal load vector and all constraints, statical and themar, are defined, the program evaluates the expected temperature distribution, and, based on the temperature variation between regions of the part analysed, the related displacement, strain and stress. Finally the program will be considered validated, if the results presents minial diffence to analytical solutions found in the literature or numerical ones obtained via commercial finite element programs.