Graphite Petroleum Coke

Graphitised Petroleum Coke (GPC), also known as graphitised coke or artificial graphite, is a carbon-containing material made from high-temperature heat-treated petroleum coke, which has the characteristics of high carbon, low sulphur, low nitrogen, and high absorption, and has been widely used as a carburising agent for high-quality iron and steel, special steel sets, as well as the related metallurgical and foundry industries, and as an additive for plastic and rubber products.

Carbon Raiser GPC 98.5 granule

The fixed carbon content of graphitised petroleum coke carbon enhancer is generally around 98% and can reach up to 99%, the sulphur content is generally between 0.03-0.06%, and the absorption rate is generally between 90%-95%.

1. Metallurgy: as a carbon additive in the process of iron and steel metallurgy, its high purity, high crystallinity and high oxidation resistance make it highly valuable in the metallurgy industry.
2. Casting and precision casting: used as a carburant to help manufacture large cathode blocks, large carbon electrodes, large graphitised electrodes and high-performance electrode paste.
3. Chemical industry: graphitised petroleum coke can be further processed to produce anode materials for potassium-ion batteries, stabilizers for stabiliser for military industrial pyrotechnic materials, etc. It is also used in the manufacture of calcium carbide, silicon carbide and other chemical products.
4. Refractories: Due to its high oxidation resistance, graphitised petroleum coke is also widely used in the field of advanced refractories and coatings for the gold industry.
5. It is also used as lubricant, electrode and pencil lead in machinery industry, as well as carbon brush in electrical industry, electrode in battery industry, catalyst in fertiliser industry, and so on.

Metallurgical Industry

Casting Industry

Chemical Industry

Graphite Products

Refractory Materials

Electrical Industry

Graphitised petroleum coke is made from raw coke. The raw coke is sent to the coking furnace for high-temperature calcination treatment.
Then it is crushed and sieved before being sent to the graphitising furnace, where it undergoes a high-temperature treatment of about 3,000 degrees Celsius, which transforms the amorphous messy-layer-structured carbon crystals of the raw petroleum coke into the hexagonal-layered-structured crystalline carbon and further improves its fixed carbon content.
Finally, the cooled graphitised petroleum coke is sorted and crushed, and the particle size reaches in order: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-10mm, 10-25mm, etc., and then packaged according to the different needs of customers.

Graphitized Petroleum Coke Particles

Graphitized Petroleum Coke Granules

Carburizer has the following roles in the steel making and foundry industry.
1. Improve the fluidity of the metal: Carbonizer can make the liquid steel flow better and help to fill the small gaps and voids in the mould.
2. Improve the hardness of castings: The right amount of carburant can improve the hardness of cast steel, making it more wear-resistant and suitable for the manufacture of durable parts.
3. Improve the toughness of castings: Carboniser can improve the toughness and strength of cast steel, and increase the reliability and safety of castings.
4. Deoxidising effect: Carboniser has a strong deoxidising effect, which can reduce the amount of ballast added.
5. Prevent precipitation of carbide: Carbon enhancers can prevent precipitation of carbide, which is conducive to increasing the amount of ferrite.
6. Improve the ductile iron spheroidisation rate: the use of carbon enhancers can improve the ductile iron spheroidisation rate.
7. Extend the life of the furnace wall: the use of carburising agent can extend the life of the furnace wall.
8. Reduce the cost of iron: the use of carboniser can use rusted scrap and alloy, reduce the cost of iron.
9. Improve cuttability: the use of carboniser can reduce the white mouth, significantly improve the cuttability, improve mechanical properties.
10. Reduce wall thickness sensitivity: the use of carburant after the organisation of dense, clean cutting surface, reduce wall thickness sensitivity.

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