Carbon and alloy steel grades https://mycity.if.ua/stalnoj-kalybrovannyj-krug-osobennosty-prymenenye-y-harakterystyky/ are used to produce seamless pipes using the hot deformation method. Forged, continuously cast and rolled blanks are used during production. They are heated in special furnaces to a temperature that is 50C higher than the value required for steel recrystallization. The exact thermal parameters depend directly on the steel grade. In this case, the metal becomes sufficiently plastic for subsequent processing.
