Stainless steel castings have higher mechanical properties than cast iron, but their casting properties are worse than cast iron. Because the melting point of stainless steel castings is high, the molten steel is easily oxidized, the fluidity of molten steel is poor, and the shrinkage is large. The body shrinkage is 10 to 14%, and the linear shrinkage is 1.8 to 2.5%. In order to prevent defects such as insufficient pouring, cold separation, shrinkage and shrinkage, cracks and sand sticking in stainless steel castings, it is necessary to adopt complex process measures than cast iron.
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