(1) to prevent stainless steel casting during chilling, besides take measures from the process, must make the wall thickness too thin, some data points out that when more than 15 mm wall thickness, the corner with a metal mold casting castings must be with rounded corners, for aluminum alloy, magnesium alloy metal mold casting casting foundry rounded corners should not be less than 3 to 4 m, for cast iron, cast steel, copper alloy metal mold casting pieces of casting round corner can see table 1.1-32 selection;(2) as there is no sex metal mold and core, and take out for ease of casting, stainless steel casting casting casting Angle should be the appropriate larger than that of sand mold casting, generally have thrown 30% 50%, it should be pointed out: casting Angle size except associated with types of alloy, the height of the wall, also related to the position of the casting surface, and in the casting cooling contraction with has a tendency to leave the surface of the metal mold casting surface can be smaller slope design, and when the casting contraction tends to pressure on the metal mold casting surface should be given a larger Angle, a variety of alloy stainless steel casting foundry slope;  (3) because of the metal mold heat faster, so the stainless steel casting, the minimum wall thickness should be larger than sand mold cast castings, all kinds of casting alloy, casting the minimum wall thickness of different size; (4) stainless steel casting casting wall and the thickness of the rib in general should be connected to the outer wall thickness of 0.6-0.7, otherwise due to the cold wall (rib) slowly, when casting shrinkage crack in internal and external wall of the junction.