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ASTM B 867 : 1995 : R2008

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Specification for Electrodeposited Coatings of Palladium-Nickel for Engineering Use
Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

08-01-2008

CONTAINED IN VOL. 02.05, 2017 Provides requirements for electrodeposited palladium-nickel coatings containing between 70 and 95 mass % of palladium metal.

1.1 CompositionThis specification covers requirements for electrodeposited palladium-nickel coatings containing between 70 and 95 mass % of palladium metal. Composite coatings consisting of palladium-nickel and a thin gold overplate for applications involving electrical contacts are also covered.

1.2 PropertiesPalladium is the lightest and least noble of the platinum group metals. Palladium-nickel is a solid solution alloy of palladium and nickel. Electroplated palladium-nickel alloys have a density between 10 and 11.5, which is substantially less than electroplated gold (17.0 to 19.3) and comparable to electroplated pure palladium (10.5 to 11.8). This yields a greater volume or thickness of coating per unit mass and, consequently, some saving of metal weight. The hardness range of electrodeposited palladium-nickel compares favorably with electroplated noble metals and their alloys (1, 2).

Note 1—Electroplated deposits generally have a lower density than their wrought metal counterparts.

Approximate Hardness (HK25)
Gold 50250
Palladium 75600
Platinum150550
Palladium-Nickel300650
Rhodium 7501100
Ruthenium6001300

1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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.

Committee
B 08
DocumentType
Standard
Pages
10
ProductNote
Reconfirmed 2008
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM B 818 : 2003 : R2018 Standard Specification for Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy<brk/>(UNS R31233) Plate, Sheet and Strip
ASTM B 741 : 1995 : R2000 Standard Test Method for Porosity In Gold Coatings On Metal Substrates By Paper Electrography (Withdrawn 2005)
ASTM B 343 : 1992 : REV A : R2004 : EDT 1 Standard Practice for Preparation of Nickel for Electroplating with Nickel
ASTM B 845 : 1997 Standard Guide for Mixed Flowing Gas (MFG) Tests for Electrical Contacts
ASTM B 507 : 2014 : REDLINE Standard Practice for Design of Articles to Be Electroplated on Racks
ASTM B 542 : 2013 : REDLINE Standard Terminology Relating to Electrical Contacts and Their Use
ASTM B 849 : 2002 Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
ASTM B 765 : 2003 : R2018 Standard Guide for Selection of Porosity and Gross Defect Tests for Electrodeposits and Related Metallic Coatings
ASTM D 1125 : 2014 : REDLINE Standard Test Methods for Electrical Conductivity and Resistivity of Water (Withdrawn 2023)
ASTM B 818 : 2003 : R2018 Standard Specification for Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy<brk/>(UNS R31233) Plate, Sheet and Strip
ASTM B 489 : 1985 : R2018 Standard Practice for Bend Test for Ductility of Electrodeposited and Autocatalytically Deposited Metal Coatings on Metals

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