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	Metric	English	Comments

Density	11.0 g/cc	0.397 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell 15T	68	68	annealed
	75	75	cold worked
Tensile Strength, Ultimate	207 MPa	30000 psi	annealed
	276 MPa	40000 psi	cold worked
Elongation at Break	5.0 %	5.0 %	cold worked
	32 %	32 %	annealed

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000172 ohm-cm	0.0000172 ohm-cm	10 % IACS

Component Elements Properties	Metric	English	Comments
Manganese, Mn	5.0 %	5.0 %
Silver, Ag	95 %	95 %

**
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NCMW091 / 15906

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