CMW® D55F Pre-oxidized Silver Cadmium Oxide Contact Material ASTM B781, Table 3

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CMW® D55F Pre-oxidized Silver Cadmium Oxide Contact Material ASTM B781, Table 3 (discontinued **)
Categories:	Metal; Metal Matrix Composite; Nonferrous Metal; Precious Metal; Silver Alloy
Material Notes:	This material has been rebranded as NAECOMET® D55F. For electrical contacts; resistant to welding and high surge currents Information provided by CMW Inc.
Key Words:	CdO
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Physical Properties	Original Value	Comments

Density	10.02 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell F	70 - 90	70 (annealed) - 90 (worked)
Tensile Strength, Ultimate	276 MPa	Annealed
	331 MPa	Worked

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000239 ohm-cm	(72% IACS)

Thermal Properties	Original Value	Comments
Melting Point	<= 980 °C
Liquidus	980 °C

Component Elements Properties	Original Value	Comments
CdO	15 %
Silver, Ag	85 %

**
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NCMW20 / 15939

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