The cast flange has accurate blank shape and size, small processing volume and low cost, but has casting defects (porosity, cracks, inclusions); the internal organization of the casting is less streamlined (if it is a cutting part, the streamlined shape is worse);
Forged flanges generally have lower carbon content than cast flanges and are less prone to rust. The forgings are more streamlined, have a denser structure, and have better mechanical properties than cast flanges.
Improper forging process will also cause large or uneven grains, hardening cracks, and the cost of forging is higher than that of cast flanges.
Forgings can withstand higher shear and tensile forces than castings.
The advantages of castings are that they can produce more complex shapes and lower costs;
The advantage of forging is that the internal structure is uniform, and there are no harmful defects such as pores and inclusions in the casting;
The difference between cast flanges and forged flanges from the production process, such as centrifugal flanges are a type of cast flanges.
Centrifugal flange belongs to the production flange of precision casting method. This type of casting is much thinner than ordinary sand casting, and its quality is improved.