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ASTM A839-02(2008)
Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications
STANDARD published on 1.5.2008
The information about the standard:
Designation standards: ASTM A839-02(2008)
Note: WITHDRAWN
Publication date standards: 1.5.2008
SKU: NS-4461
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM A839-02(2008) :
Keywords:
coercive field strength, iron-phosphorus, powder metallurgy (P/M), P/M parts, Metallographic analysis/inspection, Permeability--magnetic alloys, Phosphorus iron, Powder metallurgy (P/M) materials--specifications, Coercive force, Electrical resistance/resistivity--electrical contact materials, Fabricated materials--specifications, Iron--specifications, Magnetic materials/applications--specifications, ICS Number Code 77.160 (Powder metallurgy)
Additional information
| 1. Scope | ||||||||||
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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. |
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| 2. Referenced Documents | ||||||||||
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