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Compare the difference between castings and stainless steel forgings:

1. Casting has good wear resistance and shock absorption function, because the cast iron graphite is conducive to lubrication and oil storage, so good wear resistance. Similarly, due to the presence of graphite, gray cast iron shock resistance is better than steel.

2. Casting process performance is good, because the gray cast iron with high carbon content, close to the eutectic composition, so the melting point is relatively low, good fluidity, shrinkage is small, it is suitable for casting complex or thin-walled castings.In addition, So that the cutting process is easy to form chip breaking, so gray cast iron cutting workability is better than steel.

3. Stainless steel after forging processing can improve its organizational structure and mechanical properties. Casting tissue after forging process thermal deformation due to deformation and recrystallization of stainless steel, so that the original coarse dendrites and columnar grains into fine grain size, uniform size of the equiaxed recrystallization organization, so that the original ingot segregation, Loose, porosity, slag and other compaction and welding, the organization has become more closely, to improve the plasticity and mechanical properties of the metal.

4. The mechanical properties of the castings are lower than those of the same material. However, forging processing to ensure the continuity of metal fiber organization, so that forging the fibrous tissue and forging shape consistent, to ensure that the parts have good mechanical properties and long service life using precision die forging, cold extrusion, temperature extrusion process Production of forgings, are cast can not match.

Whether it is cast or stainless steel forgings, are an indispensable part of mechanical production, in the machinery production, according to the different product performance, select the appropriate castings or forgings, and only give full play to the role of casting or forging in order to have the perfect mechanical products The