1.c55E+N carbon steel is cooled in the furnace and then directly put into the furnace for cooling. The furnace temperature of steel parts should not be lower than 600℃ ~ 650℃, and the furnace temperature is equivalent to that of c55E+N carbon steel forgings.

2. Because the cooling speed of forgings can be controlled by adjusting the furnace temperature, it is suitable for post-forging cooling of c55E+N carbon steel for high alloy steel forgings, special alloy steel forgings and large forgings.