ASTM-A840M Historical Revision Information
Fully Processed Magnetic Lamination Steel (Metric), Standardspecification For

ASTM-A840M - WITHDRAWN - CANCELLED
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Standard Specification for Fully Processed Magnetic Lamination Steel (Metric) (Withdrawn 2000)
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Scope

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.

Note-This specification is the companion to inch-pound Specification A840.

Keywords

Carbon steel sheet; cold rolled lamination steel; cold rolled magnetic lamination steel; fully processed; lamination steel; magnetic lamination steel; ICS Number Code 29.030 (Magnetic materials)

To find similar documents by ASTM Volume:

03.04 (Magnetic Properties)

To find similar documents by classification:

29.030 (Magnetic materials Steels with special magnetic properties, see 77.140.40)

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Document Number

ASTM-A840M

Revision Level

WITHDRAWN

Status

Cancelled

Modification Type

Replaced

Publication Date

Dec. 1, 2000

Document Type

Specification

Committee Number

A06.02