1. A good graphitized recarburizer should also have the characteristics of high carbon, fast decomposition rate and high absorption rate;
  2. A good graphitizing recarburizer has very low harmful elements and has the characteristics of low sulfur and low nitrogen;
  3. Graphite recarburizer is added to molten steel and molten iron to add more uniformly in layers. It can refine its distribution in molten steel and molten iron to make absorption and performance more stable.
  4. Generally, when in use, it is also critical to choose different particle sizes according to the size, power and dissolution time of the furnace. Generally, the particle size is 0.2-2mm, and more 1-5mm.

Source: https://baijiahao.baidu.com/s?id=1701438226562927979