NAECO® ELKON® 4050 tungsten, high silver

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NAECO® ELKON® 4050 tungsten, high silver
Categories:	Metal; Nonferrous Metal; Precious Metal; Silver Alloy; Refractory Metal; Tungsten Alloy
Material Notes:	ELKON® 4050 is a high silver material that uses a special tungsten powder. It is made by the press-sinter-infiltrate method. It was developed especially for use as a combination current carrying and arcing contact for molded case circuit breakers. Its strong structure improves its arc erosion resistance while maintaining good temperature rise and current interruption characteristics. ELKON® 4050 has approximately the same silver content as ELKON® 50S, but has higher mechanical properties due to its higher sintered strength. It is used in the higher rated household breakers. Information provided by NAECO, LLC.
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Physical Properties	Original Value	Comments

Density	13.4 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell B	65

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000280 ohm-cm	62 % IACS

Component Elements Properties	Original Value	Comments
Silver, Ag	50 %
Tungsten, W	50 %

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NCMV881 / 192366

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