Characterisation of materials for production the drum of a steam boiler

U ovom radu navedena je podjela tehničkih materijala i konstrukcijskih čelika, a čelici za rad pri povišenim i visokim temperaturama detaljno su opisani. Opisana su svojstva materijala za rad pri povišenim i visokim temperaturama. Navedeni su njihov kemijski sastav, mehanička svojstva, parametri toplinske obrade i primjena. U praktičnom djelu rada opisani su osnovni dijelovi bubnja parnog kotla. Analizirani su materijali koji se koriste za izradu dijelova parnog bubnja. Opisan je položaj parnog bubnja u jednom kotlovskom postrojenju te tipovi priključaka parnog bubnja. Ukratko je opisana toplinska obrada pri zavarivanju priključaka na bubanj parnog kotla.In this paper the division of technical materials and structural steels is listed and the steels for operation at elevated and high temperatures are described in detail. The properties of the materials for operation at elevated and high temperatures are described. Their chemical composition, mechanical properties, heat treatment parameters and application are listed. In the practical part of the paper, the basic parts of the drum of a steam boiler are described. The materials used for producing parts of the steam drum are analysed. The position of the steam drum in a boiler plant is described as well as the types of drum connections with other parts of the steam boiler. The heat treatment at the welding connections to the drum of the steam boiler is briefly describe