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CMW® ELKONITE 20SB tungsten, silver

Category Metal , Nonferrous Metal , Precious Metal , Silver Alloy , Refractory Metal , Tungsten Alloy
Manufacturer CMW Inc.
Trade Name ELKONITE
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF CMW® ELKONITE 20SB tungsten, silver.pdf
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Material Notes:
ELKONITE® 20SB is made by a "press-sinter" method with a small addition of nickel used to activate the sintering. Because of fewer steps in manufacture this material is more economical than the Elkonite® 20S (press-sinter-infiltrate) counterpart. Size of Elkonite® 20SB contacts are limited due to warping. They can be made with a serrated back and excess silver to facilitate attachment. Elkonite® 20SB with its high refractory content is used in certain lower rated circuit breakers where their temperature rise is adequate. Some automotive circuit protectors use ELKONITE® 20SB operating against a silver alloy.Information provided by CMW Inc.
Physical Properties Metric English Comments
Density 14.9 g/cc
0.538 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell B 100
100
Component Elements Properties Metric English Comments
Silver, Ag 27 %
27 %
Tungsten, W 73 %
73 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.00000380 ohm-cm
0.00000380 ohm-cm
45 % IACS
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