ASTM-A839 1996
$40.63
A839/A839M-96 Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications
| Published By | Publication Date | Number of Pages |
| ASTM | 1996 | 4 |
ASTM A839/A839M-96
Historical Standard: Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications
ASTM A839/A839M
Scope
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.
Keywords
Coercive force; iron-phosphorus; powder metallurgy (P/M); P/M parts
ICS Code
ICS Number Code 77.160 (Powder metallurgy)
DOI: 10.1520/A0839_A0839M-96
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | Scope Referenced Documents Ordering Information Chemical Composition |
| 2 | Sintered Density Requirements Magnetic Property Requirements Workmanship, Finish and Appearance Sampling Rejection and Rehearing Certification Packaging and Package Marking Keywords TABLE 1 TABLE 2 |
| 3 | X1. TYPICAL MAGNETIC AND MECHANICAL PROPERTIES SINTERED AT 1120°C IN DISSOCIATED AMMONIA X1.1 X2. TYPICAL MAGNETIC AND MECHANICAL PROPERTIES SINTERED AT 1120°C IN DRY HYDROGEN X2.1 TABLE X1.1 TABLE X1.2 TABLE X2.1 |
| 4 | X3. TYPICAL MAGNETIC AND MECHANICAL PROPERTIES SINTERED AT 1260°C IN DRY HYDROGEN X3.1 TABLE X2.2 TABLE X3.1 TABLE X3.2 |
