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ASTM A726-00

Historical Revision

Standard Specification for Cold-Rolled Magnetic Lamination Quality Steel, Semiprocessed Types

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1.1 This specification covers cold-rolled carbon sheet steel used for magnetic applications. These products, commonly called "cold-rolled magnetic lamination steel" (CRML) are usually intended for applications where the stamped laminations or assembled core structures for electrical equipment are annealed to develop the desired core loss and permeability characteristics.

1.2 By using appropriate lamination annealing practices, the purchaser can optimize magnetic properties for the various types.

1.3 A non-guaranteed core-loss type is usually made to controlled chemical composition. However, magnetic properties are not guaranteed by the producer.

1.4 Higher quality core-loss types are made to controlled chemical composition and are usually given critical reduction on a temper mill to yield specified magnetic properties after a suitable lamination anneal. These products, typically called semiprocessed lamination steel, are classified by the ASTM Code Letter D in accordance with Specification A664.

1.5 The values stated in inch-pound, cgs, and em units are to be regarded as standard.

Note 1-A complete metric companion to Specification A726 has been developed-A726M; therefore, no metric equivalents are presented in this specification.

SDO ASTM: ASTM International
Document Number A726
Publication Date May 10, 2000
Language en - English
Page Count 5
Revision Level 00
Supercedes
Committee A06.02
Publish Date Document Id Type View
Oct. 1, 2018 A0726-18 Revision
Dec. 1, 2005 A0726-05 Revision
May 10, 2000 A0726-00 Revision
Nov. 1, 2010 A0726-05R10 Reaffirmation