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Rulon Bearings

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Johnson Matthey HC Platinum w/ 5% Cobalt Jewelry Alloy
Categories: Metal; Nonferrous Metal; Precious Metal; Platinum Alloy

Material Notes: Fluid for hard castings. Cobalt has been used to create casting alloys at various levels of fineness. Cobalt suppresses oxygen level in the melt, improves fluidity and castability and gives a good final hardness without reducing the melting range significantly.

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Physical PropertiesOriginal ValueComments
Density 20.8 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Vickers 135Annealed
Elongation at Break 20 %Annealed
 
Thermal PropertiesOriginal ValueComments
Melting Point 1750 - 1765 °C
Solidus 1750 °C
Liquidus 1765 °C
 
Component Elements PropertiesOriginal ValueComments
Cobalt, Co 5.0 %
Platinum, Pt 95 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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