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Rulon Bearings

Copper Nickel, UNS C71640 Copper Alloy
Categories: Metal; Nonferrous Metal; Copper Alloy

Material Notes: This alloy is similar to the more common C71500, with higher strength and improved corrosion resistance. Common applications include heat exchangers and condensers.

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Physical PropertiesMetricEnglishComments
Density 8.86 g/cc0.320 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 434 MPa63000 psiAnnealed
 558 MPa81000 psiHard Drawn (H80 - for Tubing) or Rolled (H04 for Flat Products)
 >= 558 MPa>= 81000 psiPer ASTM B111
Tensile Strength, Yield 172 MPa25000 psiAnnealed
 400 MPa58000 psiHard Drawn (H80 - for Tubing) or Rolled (H04 for Flat Products)
 >= 400 MPa
@Strain 0.5 %
>= 58000 psi
@Strain 0.5 %
Per ASTM B111
Elongation at Break 4.0 %4.0 %Hard Drawn (H80 - for Tubing) or Rolled (H04 for Flat Products)
 40 %40 %Annealed
Tensile Modulus 152 GPa22000 ksi(C71500 Annealed)
Poissons Ratio 0.3250.325(C71500 Annealed)
Machinability 20 %20 %Based on Free cutting brass = 100%
Shear Modulus 57.2 GPa8300 ksi(C71500 Annealed)
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000374 ohm-cm0.0000374 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 16.2 µm/m-°C
@Temperature 20.0 - 300 °C
9.00 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.377 J/g-°C0.0900 BTU/lb-°F
Thermal Conductivity 29.4 W/m-K204 BTU-in/hr-ft²-°F
 29.2 W/m-K
@Temperature 100 °C
203 BTU-in/hr-ft²-°F
@Temperature 212 °F
Mill Annealed (C71500)
 34.1 W/m-K
@Temperature 200 °C
237 BTU-in/hr-ft²-°F
@Temperature 392 °F
Mill Annealed (C71500)
 38.6 W/m-K
@Temperature 300 °C
268 BTU-in/hr-ft²-°F
@Temperature 572 °F
Mill Annealed (C71500)
 43.1 W/m-K
@Temperature 400 °C
299 BTU-in/hr-ft²-°F
@Temperature 752 °F
Mill Annealed (C71500)
 48.1 W/m-K
@Temperature 500 °C
334 BTU-in/hr-ft²-°F
@Temperature 932 °F
Mill Annealed (C71500)
 53.1 W/m-K
@Temperature 600.0 °C
369 BTU-in/hr-ft²-°F
@Temperature 1112 °F
Mill Annealed (C71500)
 58.1 W/m-K
@Temperature 700.0 °C
403 BTU-in/hr-ft²-°F
@Temperature 1292 °F
Mill Annealed (C71500)
Melting Point 1170 - 1240 °C2140 - 2260 °F
Solidus 1170 °C2140 °F
Liquidus 1240 °C2260 °F
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu 62.15 - 67.8 %62.15 - 67.8 %As Remainder
Iron, Fe 1.7 - 2.3 %1.7 - 2.3 %
Lead, Pb <= 0.050 %<= 0.050 %
Manganese, Mn 1.5 - 2.5 %1.5 - 2.5 %
Nickel, Ni 29 - 32 %29 - 32 %
Zinc, Zn <= 1.0 %<= 1.0 %

References for this datasheet.

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