The mechanical test requirements for castings are given in the material specification in ASTM. Examples would be impact properties for grade LCC in A352, tensile strength requirements for grade 4N in A487, or ductility minimums for grade 70-40 in A27. The properties were developed for these alloy grades from keel block leg specimens. The mechanical test requirements are intended to verify the quality of the steel and were not intended to establish the actual casting properties.