# Material Properties: OFHC Copper (UNS C10100/C10200)

### Data Available:

• Thermal Conductivity (No plot available)
• Specific Heat (No plot available)
• Expansion Coefficient (No plot available)
 Thermal Conductivity RRR = 50 Thermal Conductivity RRR = 100 Thermal Conductivity RRR = 150 Thermal Conductivity RRR = 300 Thermal Conductivity RRR = 500 UNITS W/(m-K) W/(m-K) W/(m-K) W/(m-K) W/(m-K) a 1.8743 2.2154 2.3797 1.357 2.8075 b -0.41538 -0.47461 -0.4918 0.3981 -0.54074 c -0.6018 -0.88068 -0.98615 2.669 -1.2777 d 0.13294 0.13871 0.13942 -0.1346 0.15362 e 0.26426 0.29505 0.30475 -0.6683 0.36444 f -0.0219 -0.02043 -0.019713 0.01342 -0.02105 g -0.051276 -0.04831 -0.046897 0.05773 -0.051727 h 0.0014871 0.001281 0.0011969 0.0002147 0.0012226 i 0.003723 0.003207 0.0029988 0 0.0030964 low range 4K 4K 4K 4K 4K high range 300K 300K 300K 300K 300K curve fit % error relative to data 2 1 2 1 2
 For Thermal Conductivity only: Curve fit equation of the form: log10 k = (a + cT 0.5 + eT + gT 1.5 + iT 2)/(1 + bT 0.5 + dT + f T 1.5 + hT 2) solves as: k = 10 ( a + cT 0.5 + eT + g T 1.5 + iT 2 ) / ( 1+ bT 0.5 + d T + f T 1.5 + hT 2 )

 Specific Heat Expansion Coefficient UNITS J/(kg-K) 10-6 /K a -1.91844 -17.9081289 b -0.15973 67.131914 c 8.61013 -118.809316 d -18.996 109.9845997 e 21.9661 -53.8696089 f -12.7328 13.30247491 g 3.54322 -1,30843441 h -0.3797 --- i 0 --- data range 4-300 4-300 equation range 4-300 4-300 curve fit % error relative to data 10 (T < 15K); 5 (T ≥ 15K) 10 (T < 50K); 5 (T ≥ 50K)
 For properties: specific heat and expansion coefficient curve fit equation of the form: Curve fit equation of the form: log10 y = a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8 Solves as: y = 10 a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8 Where: Coefficients a - i are summarized in the appropriate table and T is the temperature in K (x-axis), and y is the property to solve for.

revised 02/03/2010

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