ASTM A839 - 15 - Standard Specification for Iron-Phosphorus Powder Metallurgy Parts for Soft Magnetic Applications

ASTM A839 - 15

Standard Specification for Iron-Phosphorus Powder Metallurgy Parts for Soft Magnetic Applications

Status : Current   Published : January 2015

Format
PDF

Format
HARDCOPY



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

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

1.3 This 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.

1.4 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.

1.5  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.




Standard NumberASTM A839 - 15
TitleStandard Specification for Iron-Phosphorus Powder Metallurgy Parts for Soft Magnetic Applications
StatusCurrent
Publication Date04 January 2015
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Coercive field strength, Iron-phosphorus, Powder metallurgy, Powder metallurgy parts
ICS77.160
PublisherASTM
FormatA4
DeliveryYes
Pages4
File Size74 KB
Price£36.00


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