This specification has been declared "CANCELLED" by the Aerospace Materials Division, SAE, as of October 2010 and has been superseded by ASTM A 753 as shown below. The requirements of the latest issue of ASTM A 753 shall be fulfilled whenever reference is made to the cancelled AMS7701. 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will remain listed in the Numerical Section of the Index of Aerospace Material Specifications, noting that it has been superseded by ASTM A 753.

AMS7701 Type 1 superseded by ASTM A753, Alloy 3 Annealed Sheet or Strip "Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)"

AMS7701 Type 2 superseded by ASTM A753, Alloy 4 Annealed Sheet or Strip "Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)"

This specification covers two types of magnetic nickel-iron alloy in the form of sheet and strip.

These products have been used typically for magnetic circuit parts that require high magnetic permeability at low flux densities with the fabricated parts to be annealed in dry hydrogen, but usage is not limited to such applications.