ASTM-A839 2008
$35.75
A839-02(2008) Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications
| Published By | Publication Date | Number of Pages |
| ASTM | 2008 | 4 |
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 inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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 |
