自2007年6月起，SAE航空航天材料部已宣布本规范“取消”，并已被AMS 2304取代。当参考已取消的MAM 2304时，应满足最新版AMS 2304的要求。通过这一行动，本文件仍将列在航空航天材料规范索引的数字部分，并指出其已被AMS 2304取代。本规范涵盖了通过磁粉检测方法对特殊飞机质量铁磁钢（不包括可硬化耐腐蚀钢）的钢清洁度要求（公制SI单位）。 AMS 2304是该MAM的英寸/磅版本。

This specification has been declared "CANCELLED" by the Aerospace Materials Division, SAE, as of June 2007, and had been superseded by AMS 2304. The requirements of the latest issue of AMS 2304 shall be fulfilled whenever reference is made to the cancelled MAM 2304. By this action, this document will remain listed in the Numerical Section of the Index of Aerospace Material Specifications noting that it is superseded by AMS 2304.This specification covers steel cleanliness requirements in metric SI units for special aircraft-quality ferromagnetic steels, other than hardenable corrosion resistant steels, by magnetic particle inspection methods.AMS 2304 is the inch/pound version of this MAM.