自2007年8月起，SAE航空航天材料部已宣布本规范“取消”，并已被AMS 2245取代。每当提及已取消的MAM 2245B时，应满足最新版AMS 2245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 2245取代。本规范涵盖了适用于钛和钛合金挤压棒材、棒材和订购公制尺寸的型材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。术语“excl”仅适用于指定范围内的较高数字。

This specification has been declared “CANCELLED” by the Aerospace Materials Division, SAE, as of August, 2007, and has been superseded by AMS 2245. The requirements of the latest issue of AMS 2245 shall be fulfilled whenever reference is made to the cancelled MAM 2245B. 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will remain listed in the Numerical Section of the Index of Aerospace Material Specifications noting that it is superseded by AMS 2245.This specification covers established metric manufacturing tolerances applicable to titanium and titanium alloy extruded bars, rods, and shapes ordered to metric dimensions. These tolerances apply to all conditions unless otherwise noted. The term "excl" applies only to the higher figure of the specified range.