Normalizing rolling

All rolling processes require a uniformly heated slab when leaving the furnace.

Normalizing rolling aims at a fine-grained structure. This is achieved by deformation in two steps both above the recrystallization stop temperature. The first step, called roughing, is carried out at high temperatures in order to minimize the rolling forces.

After a certain holding time the final deformation takes place at a specified temperature. Thus a fine-grained structure is obtained, comparable to a material in normalized condition. The plate is cooled on still air.

This rolling process is used for structural steels, plates for pressure vessels and shipbuilding. Because of the fine grain structure a subsequent heat treatment is only required for special applications and high thicknesses.