MSS SP-112

Abstract

This surface quality Standard Practice provides criteria for the visual and tactile evaluation of cleaned AS-CAST surface finishes of components manufactured from castings. <br>This Standard Practice and its supporting MSS Cast Surface Comparator may be applied to surfaces formed by any casting method. <br>This Standard Practice provides visual and tac-tile criteria for evaluating casting surface finish and texture which can be used to develop an acceptable quality level. <br>Cast surfaces on materials such as gray iron, ductile iron, bronze and malleable iron may be com-pared with the use of this Standard Practice, however, it is not the intention to limit it to these type of materials. <br>This Standard Practice does not apply to ma-chined surfaces, or those surfaces that are intended to machined. <br>This Standard Practice is limited to "sight and feel" by comparison without measurement. Luster and color are not part of this Standard Practice. <br>This Standard Practice is not intended for use on those castings where burn-in, slag, scabs, etc. so distort the surface that the comparator can not be used and the casting may be rejected for other causes.