A hot-rolled steel tube https://ukrstarline.ua/ru/chernyj-metalloprokat/stalnaya-truba/stalnaya-truba-goryachekatanaya-kruglaya is produced by rolling a heated billet through forming mills, resulting in a dense and strong structure. It is less precise than a cold-rolled one but offers greater toughness and resistance to impact. The tube is suitable for pipelines, construction supports, and general engineering applications. The oxide layer formed during rolling provides moderate protection against corrosion and improves adhesion for coatings or paint.