ASTM A 840/A840M : 2000 : R2006
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Standard Specification for Fully Processed Magnetic Lamination Steel (Withdrawn 2011)
Hardcopy , PDF
01-05-2011
English
01-01-2006
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 03.04, 2006 Covers cold-rolled carbon steel coils or strip used in the fully processed condition in magnetic lamination applications.
| Committee |
A 06
|
| DevelopmentNote |
Supersedes ASTM A 840M. (07/2004)
|
| DocumentType |
Standard
|
| Pages |
4
|
| ProductNote |
Reconfirmed 2006
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
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 customary (cgs-emu and inch-pound) units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units which are provided for information only and are not considered standard.
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