Hot Rolling Mills

The carefully formulated EnDOtec DO*04 gives arise a welding deposit that is oxidation, corrosion and creep resistance. The typical hardness in the as-welded condition is 48 HRC that can reach 51 HRC after its working-hardened. This makes the final machining easier, but the most important feature is the maintenance of the hardness with the temperature (until 600ºC).
In the hot rolling, the ductility of the steel is used, which is greater
the higher its temperature. The bloom, billets or slabs enter the
reheating furnace and they are preheated , heated up and soaked until
1.200°C aproximately, which is above its recrystalization temperature.
Afterwards, the long Steel shapes pass through a pair rolls (continous or
semicontinous) to permit large deformations with a low number
of rolling cycles.