Low ash, low sulphur and high fixed carbon graphitized petroleum coke is made from high quality petroleum coke under a temperature of 2,500-3,500C. As a high purity carbon material, it has characteristics of high fixed carbon content, low sulfur, low ash, low porosity etc. It can be used as carbon to produce high quality steel, cast iron and alloy. It can also be used in plastic and rubber as an additive.