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About This Item

 

Full Description

1.1 This specification covers cold-rolled carbon steel coils or strip used in the fully processed condition in magnetic lamination applications.

1.2 This steel is produced to specified maximum core-loss values and is intended primarily for commercial power frequency (50- and 60-Hz) applications in magnetic devices. Desirable core-loss and permeability characteristics are developed during mill processing, so further heat treatment by the purchaser is not necessary for most uses.

1.3 Fully processed magnetic lamination steels are flat-rolled low carbon iron alloys having 1 % maximum silicon and 0.4 % maximum aluminum.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

 

Document History

  1. ASTM A840-06


    Standard Specification for Fully Processed Magnetic Lamination Steel (Withdrawn 2011)

    • Most Recent
  2. ASTM A840/A840M-00(2006)

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    Standard Specification for Fully Processed Magnetic Lamination Steel (Withdrawn 2011)

    • Historical Version
  3. ASTM A840/A840M-00


    Standard Specification for Fully Processed Magnetic Lamination Steel

    • Historical Version