1.1本规范涵盖了用于制造砂型铸件、永久模铸件、熔模铸件和压铸件的重熔锭状镁合金。 注1——规范B80、B94、B199和B403中给出了与本规范涵盖的合金有关的补充信息。 1.2以英寸-磅单位或国际单位制表示的数值应单独视为标准值。每个系统中规定的值不是精确的等价物；因此，每个系统应相互独立使用。

1.1 This specification covers magnesium alloys in ingot form for remelting for the manufacture of sand castings, permanent mold castings, investment castings, and die castings. Note 1--Supplementary information pertaining to the alloys covered by this specification when used in the form of castings is given in Specifications B80, B94, B199 and B403. 1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other.