Graphite petroleum coke is widely used as a carburizer in the steelmaking and precision casting industries, a reducing agent in the foundry and metallurgical industries, and as a refractory material, among other applications.
It promotes the nucleation of graphite in molten iron, increases the nodular graphite content in ductile iron, and improves the microstructure and grade of gray cast iron.
Graphite Petroleum Coke (GPC) Specifications
| Index | Fixed Carbon：%min | Sulfur：% | Ash Content：%max | Volatiles：% | Moisture：%max | size
|
| 1 | 99.0
| 0.03 | 0.5 | 0.5
| 0.5 | 0-1mm,0-2mm, 1-3mm,1-5mm; and Customization |
| 2 | 98.7 | 0.05 | 0.8 | 0.5 | 0.5 |
| 3 | 98.4 | 0.3 | 0.8 | 0.6
| 0.5 |
The above specifications can all be customized according to customer requirements
Graphite Petroleum Coke (GPC) Properties
Crystal Structure: Highly ordered hexagonal layered graphite with regular interlayer spacing.
High Carbon Content: 98.5% – 99.9% (compared to 90–97% for regular coke).
Ultra-Low Impurities: Extremely low Sulfur (S ≤ 0.05%), Nitrogen (N ≤ 250ppm), and Ash (≤ 0.1%).
High Electrical/Thermal Conductivity: Excellent conductivity, close to natural graphite and far superior to regular coke.
Excellent Thermal Stability: High-temperature resistance (up to 3000°C+), oxidation resistance, corrosion resistance, and low thermal expansion.
High Chemical Stability: Resistant to acids and alkalis, does not react with most substances.