... for inner lead with excellent electrical, thermal, mechanical properties and excellent chemical stability, mainly for key materials ... .0300.0320.0330.0380.050special order avaliableCopper Wire Physical Properties: Resistivity1.690*10-6 Ω.cmDensity8.9g/cm3Purity5NPull(Φ ... 3. Thermal conductivity: 39.5 KW/m2K4. Mechanical properties: High mechanical property, larger tensile strength, better elongation, ...