ASTM-A839 Historical Revision Information
Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications

ASTM-A839 - 2002 EDITION - SUPERSEDED
Show Complete Document History

Document Center Inc. is an authorized dealer of ASTM standards.
The following bibliographic material is provided to assist you with your purchasing decision:

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

Scope

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 % 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 resintered or annealed.

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

Keywords

coercive field strength; iron-phosphorus; powder metallurgy (P/M); P/M parts; ICS Number Code 77.160 (Powder metallurgy)

To find similar documents by ASTM Volume:

03.04 (Magnetic Properties)

To find similar documents by classification:

77.160 (Powder metallurgy Including sintered metal materials and hardmetals)

This document comes with our free Notification Service, good for the life of the document.

This document is available in either Paper or PDF format.

Document Number

ASTM-A839-02

Revision Level

2002 EDITION

Status

Superseded

Modification Type

Revision with Designation Change

Publication Date

Oct. 10, 2002

Document Type

Specification

Page Count

5 pages

Committee Number

A06.02