(1)
DATA AND CORRELATIONS
The following equations represent the change in the thermal and physical properties of oxygen free copper with the change in temperature:
(1)
(2)
(3)
(4)
(5)
with T in degree Celsius, Eqs 2-4 valid in the temperature range 20-927 C and Eqs (1) and (5) in the range 20-800 C.
TABLE 1 Thermal and structural properties of oxygen free copper*
T C [[rho]] E GPa [[nu]] k W/m-K c J/kg-K [[sigma] [[alpha] [[sigma]
kg/m3 ]y MPa ] ]u MPa
(10-6)
m/m-K
20 8940 82.000 0.330 399.000 26.000 15.400 207.000
27 81.475 398.000 25.714 15.333 205.219
200 74.000 389.931 20.000 16.600 155.000
327 71.068 383.000 17.302 17.750 113.962
400 69.000 378.772 16.000 18.300 91.000
500 66.000 372.619 14.624 19.100 62.000
527 64.813 371.000 14.196 19.362 54.815
600 62.000 366.083 13.000 20.000 38.000
727 58.727 357.000 9.912 20.973 20.398
800 59.000 351.864 7.500 21.600 18.000
927 342.000 1.729 22.584
*OFCu (Annealed; 850 Cx0.5 hours, cool down; 6 hours)
k (W/m-K)
Temperature (C)
Figure 1 : Thermal conductivity of oxygen free copper.
E (GPa) [[alpha]] (10-6 m/m-K)
Temperature (C)
Figure 2 : Elastic modulus and thermal expansion coefficient of oxygen free copper.
[[sigma]]y (MPa) [[sigma]]u (MPa)
Temperature (C)
Figure 3 : Yield stress and ultimate tensile strength of oxygen free copper.