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ASTM A839-02
Standard Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic Applications
Automaticky preložený názov:
Štandardné špecifikácie pre Iron fosforu práškovej metalurgie ( P / M ) Diely pre mäkké Magnetic Applications
NORMA vydaná dňa 10.10.2002
Informácie o norme:
Označenie normy: ASTM A839-02
Poznámka: NEPLATNÁ
Dátum vydania normy: 10.10.2002
Kód tovaru: NS-4462
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM A839-02 :
Keywords:
coercive field strength, iron-phosphorus, powder metallurgy (P/M), P/M parts, ICS Number Code 77.160 (Powder metallurgy)
Doplňujúce informácie
| 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 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. |
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| 2. Referenced Documents | ||||||||||
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