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ASTM B683-20

ASTM B683-20

Standard Specification for Pure Palladium Electrical Contact Material

2020-04-16 /Active

This specification covers palladium in the form of rod, wire, strip, and sheet material for electrical contacts. Raw materials shall be of such quality and purity that the finished product (produced by cold working, annealing, turning, grinding, or pickling as are required) will have the properties and characteristics prescribed in this specification. The material shall conform to the chemical composition requirements prescribed for palladium, platinum group (iridium, platinum, rhodium, osmium, and ruthenium), gold, silver, and copper, total impurities, lead, antimony, bismuth, tin, arsenic, cadmium, zinc, iron, and other elements. Ultimate tensile strength, elongation, microhardness (Knoop or Vickers), hardness (Rockwell or Rockwell Superficial), or a combination of these mechanical properties may be specified as temper criterion. Tension and hardness tests shall be conducted to determine conformity to the ultimate tensile strength and elongation, and Rockwell and Knoop hardness, respectively. Inspection of furnished material shall be done by temper test, dimensional test, and spectrographic or chemical analysis when needed.


1.1 This specification covers palladium in the form of rod, wire, strip, and sheet material for electrical contacts.

1.2 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.

1.3 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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

contact alloy; electrical contact alloy; palladium;
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