本规范涵盖砂铸件形式的镁合金。这些铸件通常用于要求高屈服强度高达570华氏度（299摄氏度）和优异耐腐蚀性的零件，但用途不限于此类应用。

This specification covers a magnesium alloy in the form of sand castings. These castings have been used typically for parts requiring high yield strength up to 570 degrees F (299 degrees C) and excellent corrosion resistance, but usage is not limited to such applications.