Normalizing heat treatment helps to remove impurities and improve ductility and toughness. During the normalizing process, material is heated to between 750-980 °C (1320-1796 °F). The exact heat applied for treatment will vary and is determined based on the amount of carbon content in the metal.

What is Normalising heat treatment?

Normalising is a heat treatment process that is used to make a metal more ductile and tough after it has been subjected to thermal or mechanical hardening processes. ... This heating and slow cooling alters the microstructure of the metal which in turn reduces its hardness and increases its ductility.

What's the difference between normalizing and annealing?

Key Difference – Annealing vs Normalizing

The key difference between annealing and normalizing is that, in annealing, the cooling process is done in the oven while, in normalizing, it is done in the air. However, both methods are equally important, and they modify the microstructure of the material in different ways.