2. Cathode bar

The innovative cathode collector bar should be very low carbon steel, it is ASTM Grade 1006 low carbon steel, because low carbon steel has good electroconductibility. Normally the content of carbon should less than 0.06%, the material named SAE 1006, the chemical components as below:
Carbon ≤0.06%, Silicon ≤0.07%, Manganese ≤0.45%, Phosphorus ≤03%, Sulphur ≤0.04%, Nitrogen ≤0.012%.

SAE 1006 Cathode bar is used for electrolytic aluminium factory, the low carbon steel has good electrical conductivity. To produce cathode collector bar of electrolytic aluminum is a strict process, because the electrowinning system is heavy DC current, the electroconductivity will decide the cost of Aluminum, so it must have very good electroconductivity, to save power consumption and raise the electrolytic efficiency.