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Standard Specification for Electrodeposited Coatings of Palladium- Cobalt Alloy for Engineering Use
Automaticky preložený názov:
Štandard Specification pre elektrolyticky vylúčené povlaky Palladium- kobaltu zliatiny pre strojárenstvo použitie
NORMA vydaná dňa 1.5.2012
Označenie normy: ASTM B984-12
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.5.2012
Kód tovaru: NS-8988
Počet strán: 7
Približná hmotnosť: 21 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
connectors, contacts, electrical connectors, electrical contacts, engineering coatings, palladium, palladium-cobalt coatings, palladium-cobalt electrodeposits, palladium-cobalt plating, ICS Number Code 25.220.40 (Metallic coatings)
1. Scope | |
1.1 This specification covers requirements for electrodeposited palladium-cobalt alloy coatings containing approximately 80% of palladium and 20% of cobalt. Composite coatings consisting of palladium-cobalt with a thin gold overplate for applications involving electrical contacts are also covered. Palladium and palladium-cobalt remain competitive finishes for high reliability applications. 1.2 Properties—Palladium is the lightest and least noble of the platinum group metals (1) |
Approximate Hardness (HK25) |
Gold |
50–250 |
Palladium |
75–600 |
Platinum |
150–550 |
Palladium-Nickel |
300–650 |
Palladium-Cobalt |
500–650 |
Rhodium |
750–1100 |
Ruthenium |
600–1300 |
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Some specific hazards statements are given in Section 7 on Hazards.
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