Calcium is a metal in group IIA of the periodic table with atomic number 20 ... The linear coefficient of thermal expansion is 22.32 m/m/K and the thermal conductivity is 2.01 W/cm/K.
Tungsten is a metal in group VIB of the periodic table with atomic number 74 ... The linear coefficient of thermal expansion is 4.59 m/m/K and the thermal conductivity is 1.73 W/cm/K.