This specification covers standard requirements for flat-rolled carbon steel used in the fully processed condition in magnetic lamination applications. Steels supplied to this specification normally do not require further heat treatment by the user. There are no chemical requirements for these lamination steels. Instead the steels shall be produced to specified maximum core-loss values. Steels produced to this specification are available in thicknesses of 0.0185 in. (0.47 mm) and 0.025 in. (0.64 mm). For each thickness there are two core-loss types. The core loss is determined using the Epstein test method at a frequency of 60 Hz and a maximum flux density of 15 kG. In addition to the magnetic property requirements, dimensional tolerances, lamination factors and mechanical hardnesses are specified.
Область применения1.1 This specification covers cold-rolled carbon steel coils orstrip used in the fully processed condition in magnetic laminationapplications.
1.2 This steel is produced to specified maximum core-loss valuesand is intended primarily for commercial power frequency (50- and60-Hz) applications in magnetic devices. Desirable core-loss andpermeability characteristics are developed during mill processing,so further heat treatment by the purchaser is not necessary formost uses.
1.3 Fully processed magnetic lamination steels are flat-rolledlow carbon iron alloys having 1 % maximum silicon and 0.4 % maximumaluminum.
1.4 The values stated in customary (cgs-emu and inch-pound)units are to be regarded as standard. The values given inparentheses are mathematical conversions to SI units which areprovided for information only and are not considered standard.
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