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Rulon Bearings

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Cupronickel 75-25, UNS C71300 Copper Coinage Alloy
Categories: Metal; Nonferrous Metal; Copper Alloy

Material Notes: This alloy is used primarily in coins. The hard rolled alloy creates clean blanks and the annealed alloy allows a good rendition of the coins features.

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Physical PropertiesOriginal ValueComments
Density 0.323 lb/in³
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell B 69Hard Drawn (H80 - for Tubing) or Rolled (H04 for Flat Products)
Tensile Strength, Ultimate 52000 psiAnnealed
 78000 psiHard Drawn (H80 - for Tubing) or Rolled (H04 for Flat Products)
Tensile Strength, Yield 15000 psiAnnealed
Elongation at Break 11 %Hard Drawn (H80 - for Tubing) or Rolled (H04 for Flat Products)
 40 %Annealed
Tensile Modulus 2.20e+7 psi(C71500 Annealed)
Poissons Ratio 0.325(C71500 Annealed)
Machinability 20 %Based on Free cutting brass = 100%
Shear Modulus 8300 ksi(C71500 Annealed)
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000287 ohm-cm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 9.00 µin/in-°F
@Temperature 20.0 - 300 °C
Specific Heat Capacity 0.0900 BTU/lb-°F
Thermal Conductivity 228 BTU-in/hr-ft²-°F
Melting Point 2120 - 2240 °F
Solidus 2120 °F
Liquidus 2240 °F
 
Component Elements PropertiesOriginal ValueComments
Copper, Cu 71.25 - 76.5 %As Remainder
Iron, Fe <= 0.20 %
Lead, Pb <= 0.050 %
Manganese, Mn <= 1.0 %
Nickel, Ni 23.5 - 26.5 %
Zinc, Zn <= 1.0 %

References for this datasheet.

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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MC71300b1 / 11743

Master Bond adhesives

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