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Standard Specification for Electrodeposited Coatings of Palladium- Cobalt Alloy for Engineering Use
Automatische name übersetzung:
Standard-Spezifikation für Galvanische Beschichtungen Palladium- Cobalt Alloy für Engineering Benutzung
NORM herausgegeben am 1.5.2012
Bezeichnung normen: ASTM B984-12
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.5.2012
SKU: NS-8988
Zahl der Seiten: 7
Gewicht ca.: 21 g (0.05 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen 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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Historisch
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