Which standard should be used to find the hardness values for materials used in American standard pipe fittings?
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For example, under which standard can one find the hardness of A403 WP304? The hardness values for standard national pipe fittings are 13,041, while those for petrochemical applications are 3,408; these values can be found in relevant databases.
In A403 and its referenced standards. . Check. . If it exists, then it’s there. If not, it depends on the technical requirements of the specific project.