Possibilities of application of modern fine grained steels for the production of car semitrailers

Abstract

The paper presents the outcome of the literature research concerning the possibility of using modern steel grades in the automotive industry. Based on carried out research on the possibility of application of fine-grained steel there was presented a positive effect of grain refinement on selected properties of the steel. An important factor in determining the applicability of the material is the ratio of strength to weight and resistance to fatigue. The paper presents results of fatigue tests of DOMEC 700MS steel and they were confronted with the results of research on constructional steel S355J2.