ASTM A 839/A839M : 1996

Name: ASTM A 839/A839M : 1996
Brand: ASTM
Price: 125.58 AUD

Superseded

View Superseded by

Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

31-12-2010

Publisher

American Society for Testing and Materials

CONTAINED IN VOL 03.04, 2001 Describes parts produced from iron-phosphorus powder metallurgy materials for use in magnetic applications needing higher permeability and electrical resistivity and lower coercive force than routinely obtainable.

1.1 This specification covers parts produced from iron phosphorous powder metallurgy materials. These parts are used in magnetic applications requiring higher permeability and electrical resistivity and lower coercive force than attainable routinely from parts produced from iron powder.

1.2 Two powder types are covered; Type I containing nominally 0.45% phosphorus, and Type II containing nominally 0.8% phosphorus.

1.3 This specification deals with P/M 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 re-sintered or annealed.

1.4 The values stated in either customary (cgs-emu and inch-pound) units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from two systems may result in nonconformance with this specification.

Committee	A 06
DocumentType	Standard
Pages	5
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM A 839 : 2015 : REDLINE
Supersedes	ASTM A 839 : 2002 : R2008