Structure and mechanical properties of fine-grained steels
In this article was determined the influence of alloying elements on changes in the structure and properties of the selected grade of fine grained steel. The main objective of research that was carried out, was to provide independent results to the company which uses Hardox 400 and 450 steel in the construction of semi-trailers. To this end, researches of selected mechanical properties and fatigue tests were carried out. For this purpose, samples were prepared for fatigue research on the device Rotoflex for Hardox 400 and 450 and as reference samples for S355J2 steel, which is also used in the construction of semi-trailers by Wielton S.A.