ASTM-A1054:2016 Edition

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A1054-16 Standard Specification for Sintered Ferrite Permanent Magnets

Published By	Publication Date	Number of Pages
ASTM	2016	5

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Category: ASTM

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ASTM A1054-16

Historical Standard: Standard Specification for Sintered Ferrite Permanent Magnets

ASTM A1054

Scope

1.1 This specification covers technically important, commercially available, magnetically hard sintered ferrite permanent magnets.

1.2 Ferrite permanent magnets have residual induction B_r from 0.2 T (2000 G) up to about 0.5 T (5000 G) and intrinsic coercive field strength H_cJ from 160 kA/m (2000 Oe) up to about 400 kA/m (5000 Oe). Their specific magnetic hysteresis behavior (demagnetization curve) can be characterized using Test Method A977/A977M.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to customary (cgs-emu and inch-pound) units which are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

ceramic magnet; coercive field strength; ferrite; ferrite magnet; hard ferrite; magnetic induction; magnetic properties; permanent magnet; sintered ceramic ferrite; sintered ferrite magnet;

ICS Code

ICS Number Code 29.030 (Magnetic materials)

DOI: 10.1520/A1054-16