CMW® ELKONIUM 28 Silver Alloy

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CMW® ELKONIUM 28 Silver Alloy (discontinued **)
Categories:	Metal; Nonferrous Metal; Precious Metal; Silver Alloy
Material Notes:	This material has been rebranded as a part of the NAECO® ELKONIUM® product line. ELKONIUM® 28, a silver-manganese alloy, was developed by CMW specifically for the control of the transfer of contact material in low voltage DC applications. It is used as a positive contact operating against a CMW D582F (silver graphite, see Series 300) negative contact in vibrating contact automobile voltage regulators. Information provided by CMW Inc.
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Physical Properties	Original Value	Comments

Density	11.0 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell 15T	68	annealed
	75	cold worked
Tensile Strength, Ultimate	30000 psi	annealed
	40000 psi	cold worked
Elongation at Break	5.0 %	cold worked
	32 %	annealed

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000172 ohm-cm	10 % IACS

Component Elements Properties	Original Value	Comments
Manganese, Mn	5.0 %
Silver, Ag	95 %

**
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NCMW091 / 15906

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