Maybe.
I never depend on tables without understanding what they represent.
As an exercise, you should use the thermal conductivity of the pipe material in question in the heat transfer equation to get real numbers. Then compare to the tabulated values.
If you are insulating the plastic pipe, the total heat loss will be comparable to that of insulated copper since the insulation provides enough resistance to heat flow that the difference in conductivity of the pipe material is insignificant.
If you are not insulating the pipe, then the difference in material will play out.
Since copper tubing and the plastic pipe material have essentially the same roughness (epsilon), there is not significant difference in the friction loss - but you do have to consider the difference in pipe inner diameter.