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ASTM A 840/A840M : 2000 : R2006

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Standard Specification for Fully Processed Magnetic Lamination Steel (Withdrawn 2011)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

Hardcopy , PDF

Withdrawn date

05-01-2011

Language(s)

English

Published date

01-01-2006

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 03.04, 2006 Covers cold-rolled carbon steel coils or strip used in the fully processed condition in magnetic lamination applications.

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.

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Withdrawn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

ASTM A 719/A719M : 2014 : REDLINE Standard Test Method for Lamination Factor of Magnetic Materials
ASTM A 664 : 2015 : REDLINE Standard Practice for Identification of Standard Electrical Steel Grades in ASTM Specifications
ASTM A 700 : 2014 Standard Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment

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PDF - English
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