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ASTM A839/A839M

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

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Organization: ASTM
Publication Date: 10 October 1996
Status: inactive
Page Count: 6
ICS Code (Powder metallurgy): 77.160
scope:

1. 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 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 the two systems may result in nonconformance with this specification.

Document History

April 1, 2015
Standard Specification for Iron-Phosphorus Powder Metallurgy Parts for Soft Magnetic Applications
This specification covers parts produced from ironphosphorus powder metallurgy materials. These parts are used in magnetic applications requiring higher permeability and electrical resistivity and...
October 10, 2002
Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications
This specification covers parts produced from ironphosphorus powder metallurgy materials. These parts are used in magnetic applications requiring higher permeability and electrical resistivity and...
October 10, 2002
Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications
This specification covers parts produced from ironphosphorus powder metallurgy materials. These parts are used in magnetic applications requiring higher permeability and electrical resistivity and...
ASTM A839/A839M
October 10, 1996
Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications
1. 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...
March 29, 1985
STANDARD SPECIFICATION FOR PHOSPHOROUS IRON FABRICATED BY POWDER METALLURGY TECHNIQUES
A description is not available for this item.

References

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