Steel alloys are the most common material among the metals processed in the manufacturing industry. According to Polish Norms, the first component should constitute the vast majority of the alloy, and the second no more than 2.11%. If the carbon content is higher, we are already talking about cast iron. In addition, there are other metals, elements and non-metallic inclusions in the composition of steel alloys that influence the heat treatment process to obtain the desired structure and mechanical properties. You will find out more information later in this article.