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ASTM A753-97

Historical Revision

Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)

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1.1 This specification covers commonly used wrought nickel-iron soft magnetic alloys produced or supplied expressly for use in magnetic cores and other parts requiring high magnetic permeability, high electrical resistivity, low coercive force, and low core loss.

1.2 This specification covers materials supplied by a producer or converter to the form and physical condition desired for fabrication into parts that will later be given final heat treatment to achieve the desired magnetic characteristics. It covers materials supplied in the form of forging billets, hot-rolled plate, strip, and bar; cold-finished bar; cold-rolled and annealed sheet and strip; shaped wire; and wire.

1.2.1 This specification doesn't not cover either powder metallurgically produced or cast parts.

1.2.2 This specification lists requirements for strip products having isotropic or semi-isotropic magnetic properties but does not include requirements for anisotropic or square hysteresis loop alloys or alloys processed to yield flattened hysteresis loops by use of heat treatments in an applied magnetic field.

1.2.3 This specification does not cover alloys modified by the addition of elements such as sulfur and selenium to enhance machinability.

1.3 The values stated in either customary (cgs-emu and inch-pound) units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.


SDO ASTM: ASTM International
Document Number A753
Publication Date Oct. 10, 1997
Language en - English
Page Count 6
Revision Level 97
Supercedes
Committee A06.02
Publish Date Document Id Type View
Feb. 1, 2021 A0753-21 Revision
May 1, 2008 A0753-08 Revision
Oct. 10, 2002 A0753-02 Revision
Oct. 10, 1997 A0753-97 Revision
May 1, 2013 A0753-08R13 Reaffirmation