This specification has been declared “CANCELLED” by the Aerospace Materials Division, SAE, as of July, 2007, and has been superseded by AMS 2303. The requirements of the latest issue of AMS 2303 shall be fulfilled whenever reference is made to the cancelled MAM 2303D. By this action, this document will remain listed in the Numerical Section of the Index of Aerospace Material Specifications, noting that it has been superseded by AMS 2303.

This specification covers steel cleanliness requirements in SI (Metric) units for aircraft-quality, ferromagnetic, hardenable corrosion-resistant steels as determined by magnetic particle inspection methods. This specification contains sampling, specimen preparation, and inspection procedures and cleanliness rating criteria.

AMS 2303 is the inch/pound version of this MAM.

This procuedure has been used typically for the cleanliness evaluation of blooms, billets, tube rounds, stock for forging or flash welded rings, slabs, bars, sheet, strip, plate, tubing, and extrusions used in fabricating parts subject to magnetic particle inspection, but may be used for qualification of a heat, melt, or lot of steel.