... -3,500°C. As a high-purity carbon material, it has characteristics of high fixed carbon content, low sulfur, low ash, low ... porosity etc. Application:It can be used as carbon raiser (Recarburizer) to produce high quality steel,cast iron and alloy ... and rubber as an additive.It can be used as carbon raiser (Recarburizer) to produce high quality steel,cast iron and alloy ...