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CMW® ELKONIUM 306 platinum based alloy

Category Metal , Nonferrous Metal , Precious Metal , Platinum Alloy
Manufacturer CMW Inc.
Trade Name ELKONIUM
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
Platinum has complete freedom from atmospheric corrosion and is preferred for devices that have low closed forces and where surety of making a circuit may be a problem. It has a high melting point (1769(C) and good resistance to forming arcs. Low electrical conductivity (15% IACS) limits its application to low currents, usually below 5 amperes. Because of the high cost of the platinum ELKONIUM alloys, they are almost always supplied as composite contacts with thin facings of the ELKONIUM metal (silver brazed to nickel plated steel backings in the form of rivets, screws and weld buttons).ELKONIUM 34, ELKONIUM 305 and ELKONIUM 306 alloys have lower ruthenium contents and are softer and more ductile. They can be headed into rivets over a limited range. All five alloys have low transfer characteristics and are used in voltage regulators and motor speed governors. They can be used as a positive contact paired with tungsten negative contact for improved transfer resistance. They also have high tarnish resistance and are suitable for many sensitive, low voltage applications.Information provided by CMW Inc.
Physical Properties Metric English Comments
Density 20.5 g/cc
0.741 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell 15T 85
85
annealed
90
90
cold worked
Tensile Strength, Ultimate 448 MPa
65000 psi
annealed
827 MPa
120000 psi
cold worked
Elongation at Break 5.0 %
5.0 %
cold worked
16 %
16 %
annealed
Component Elements Properties Metric English Comments
Platinum, Pt 94 %
94 %
Ruthenium, Ru 6.0 %
6.0 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000430 ohm-cm
0.0000430 ohm-cm
4 % IACS
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