ASTM-A840/A840M 2000

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A840/A840M-00 Standard Specification for Fully Processed Magnetic Lamination Steel

Published By	Publication Date	Number of Pages
ASTM	2000	4

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Categories: 77.140.50 - Flat steel products and semi-products, ASTM

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Description

ASTM A840/A840M-00

Historical Standard: Standard Specification for Fully Processed Magnetic Lamination Steel

ASTM A840/A840M

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.

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.

Keywords

carbon steel sheet; cold-rolled lamination steel; cold-rolled magnetic lamination steel; fully processed; lamination steel; magnetic lamination steel

ICS Code

ICS Number Code 77.140.50 (Flat steel products and semi-products)

DOI: 10.1520/A0840_A0840M-00

Additional information

Standard Title	A840/A840M-00 Standard Specification for Fully Processed Magnetic Lamination Steel
Published Code	ASTM
Publication Date	2000
Pages Count	4
ICS Codes	77.140.50 - Flat steel products and semi-products