Carbon additive is a product that is added to molten steel. Carbon additive includes

calcined Calcination refers to thermal treatment of a solid chemical compound (e.g. mixed carbonate ores) whereby the compound is raised to high temperature without melting under restricted supply of ambient oxygen (i.e. gaseous O2 fraction of air), gene ...

petroleum coke Petroleum coke, abbreviated coke or petcoke, is a final carbon-rich solid material that derives from oil refining, and is one type of the group of fuels referred to as cokes. Petcoke is the coke that, in particular, derives from a final cracki ...

graphite Graphite () is a crystalline form of the element carbon. It consists of stacked layers of graphene. Graphite occurs naturally and is the most stable form of carbon under standard conditions. Synthetic and natural graphite are consumed on la ...

petroleum coke, calcined

anthracite coal Anthracite, also known as hard coal, and black coal, is a hard, compact variety of coal that has a submetallic luster. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the high ...

, electrical calcined anthracite, and natural graphite. For the steel-making industry, the most suitable carbon additive is calcined petroleum coke with fixed carbon of 98.5%min. Sulfur in calcined petroleum coke is a crucial element, for sulfur impacts the quality of steel. The lower the sulfur, the better quality of calcined petroleum coke. The sulfur content of calcined petroleum coke is decided by the sulfur content in petroleum coke. Northeast China is the only source of low sulfur (≤ 0.5) petroleum coke in the world. G-high carbon has been the origin for many trading companies and metallurgical factories when they look for qualified carbon additives.

References

Steelmaking {{metalworking-stub