1.1 This specification covers magnesium-alloy sand castings designated as shown in Table 1. (A) Limits are in weight?% max unless shown as a range or stated otherwise.(B) ASTM alloy designations were established in accordance with Practice B951. UNS designations were established in accordance with Practice E527.(C) Includes listed elements for when no specific limit is shown.(D) If iron exceeds 0.005?%, the Iron to Manganese ratio shall not exceed 0.032.(E) Rare earth elements are in the form of Didymium, with not less than 70?% Neodymium, and the remainder substantially Praseodymium.(F) Alloy EV31A is a patented composition, suitable for elevated temperature applications. Interested parties are invited to submit information regarding the identification of alternatives to these compositions to ASTM International. Your comments will receive careful consideration at a meeting of the responsible