ASTM A1054-16 Standard Specification for Sintered Ferrite Permanent Magnets

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Organization: ASTM International
Publication Date: 1 November 2016
Status: active
Page Count: 5
ICS Code (Magnetic materials): 29.030

Abstracts

scope

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

1.2 Ferrite permanent magnets have residual induction Br from 0.2 T (2000 G) up to about 0.5 T (5000 G) and intrinsic coercive field strength HcJ  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.

abstract

This specification covers technically important, commercially available, magnetically hard sintered ceramic ferrite permanent magnets. Magnetic properties such as remanence, coercive field strength, and relative recoil permeability shall be measured. The specified magnetic properties are valid only for magnet test specimens with a uniform cross-section along the axis of magnetization. Properties for anisotropic magnets shall be measured along the axis of preferred orientation.

Document History

ASTM A1054-16 - Standard Specification for Sintered Ferrite Permanent Magnets
November 1, 2016 - ASTM International

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

ASTM A1054-14 - Standard Specification for Sintered Ceramic Ferrite Permanent Magnets
May 15, 2014 - ASTM International

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

1.2 Ceramic ferrite magnets have residual m...

ASTM A1054-07 - Standard Specification for Sintered Ceramic Ferrite Permanent Magnets
May 1, 2007 - ASTM International

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

1.2 Ceramic ferrite magnets have residual magnetic induction Br from 2000 G (0.2 T) up to about 5000 G (0.5 T) and intrinsic coercive field strength H<i...

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