本规范已于2007年7月由SAE航空航天材料部宣布“取消”，并已被AMS 2244取代。每当提及已取消的MAM 2244B时，应满足最新版AMS 2244的要求。通过这一行动，本文件将保留在航空航天材料规范索引的数字部分中，并注明其已被AMS 2244取代。本规范涵盖了适用于订购公制尺寸的钛和钛合金管的既定公制制造公差。除非另有说明，否则这些公差适用于所有条件。

This specification has been declared “CANCELLED” by the Aerospace Materials Division, SAE, as of July, 2007, and has been superseded by AMS 2244. The requirements of the latest issue of AMS 2244 shall be fulfilled whenever reference is made to the cancelled MAM 2244B. 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will remain listed in the Numerical Section of the Index of Aerospace Material Specifications noting that it is superseded by AMS 2244.This specification covers established metric manufacturing tolerances applicable to titanium and titanium alloy tubing ordered to metric dimensions. These tolerances apply to all conditions, unless otherwise noted.