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ASTM A 904 : 2014 : REDLINE

ASTM A 904 : 2014 : REDLINE

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Specification for 50 Nickel-50 Iron Powder Metallurgy Soft Magnetic Parts

Available format(s)

PDF

Superseded date

06-08-2020

Language(s)

English

Published date

01-05-2014

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 03.07, 2017 Describes the magnetic properties of 50 nickel-50 iron parts fabricated by powder metallurgy techniques and is intended for parts that require high magnetic permeability, high electrical resistivity, low coercive field strength, and low hysteresis loss.

1.1This specification covers the magnetic properties of 50 nickel-50 iron parts fabricated by powder metallurgy techniques and is intended for parts that require high magnetic permeability, high electrical resistivity, low coercive field strength, and low hysteresis loss. It differs from the wrought alloy specification (see Specification A753) because these parts are porous. A number of magnetic properties such as permeability are proportional to the sintered density.

1.2This specification deals with powder metallurgy parts in the sintered or annealed condition. Should the sintered parts be subjected to any secondary operation that causes mechanical strain, such as machining or sizing, they should be resintered or annealed.

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

1.4This 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.

Committee
A 06
DocumentType
Redline
Pages
4
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM A 848 : 2017 : REDLINE Standard Specification for Low-Carbon Magnetic Iron
ASTM B 925 : 2015 : REDLINE Standard Practices for Production and Preparation of Powder Metallurgy (PM) Test Specimens

ASTM A 596/A596M : 2014 : REDLINE Standard Test Method for Direct-Current Magnetic Properties of Materials Using the Ballistic Method and Ring Specimens
ASTM B 962 : 2017 : REDLINE Standard Test Methods for Density of Compacted or Sintered Powder Metallurgy (PM) Products Using Archimedes’ Principle
ASTM A 773/A773M : 2014 : REDLINE Standard Test Method for Direct Current Magnetic Properties of Low Coercivity Magnetic Materials Using Hysteresigraphs

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