According to the "China Graphitized Petroleum Coke recarburizer Market Survey and Forecast Report (2018 Edition)" released by Limu Information Consulting, graphitized petroleum coke recarburizer is the most widely used in the foundry industry, and its production process is to use raw material petroleum coke in the graphitization furnace under high temperature 2200-2600 C

At present, the major domestic manufacturers of graphitized petroleum coke recarburizers are concentrated in North regions. China's graphitized petroleum coke recarburizer output was 1.307 million tons in 2014, China's graphitized petroleum coke recarburizer output was 1.362 million tons in 2015, China's graphitized petroleum coke recarburizer output was 1.398 million tons in 2017, and The output of petroleum coke recarburizer was 1.463 million tons.

Based on retrospective review of China's cast iron output from 1989-2010, it is predicted that China's cast output will reach 70 million tons by 2020, and per capita output will reach 53kg. For different cast irons, the amount of carburizing added also varies. The percentage of carburizing agent added for per ton of casting is 2%, and the demand for castings will be 1.4 million tons.