The main application range of normalizing

The main application areas of normalizing are:
1.For low carbon steel, the hardness after normalizing is slightly higher than that of annealing, and the toughness is also better, which can be used as a pretreatment for cutting.

2.For medium carbon steel, it can be used as a final heat treatment instead of quenching and tempering treatment, or as a preparatory treatment before surface quenching by induction heating.

3.Used for tool steel, bearing steel, carburized steel, etc., it can reduce or inhibit the formation of network carbide, so as to obtain a good structure required for spheroidizing annealing.

4.For steel castings, it can refine the as-cast structure and improve the machining performance.

5.For large forgings, it can be used as the final heat treatment to avoid a large cracking tendency during quenching.

6.Used in ductile iron to improve hardness, strength and wear resistance, such as for manufacturing important parts such as crankshafts and connecting rods of automobiles, tractors, and diesel engines.

7.Normalizing before spheroidizing annealing of hypereutectoid steel can eliminate the reticulated cementite to ensure that all cementite is spheroidized during spheroidizing annealing.