High Carbon Low Ash Foundry Coke with Low Sulphur 120-150mm
Foundry Coke grades are primarily categorized by their intended use and industry standards. The following are the main classification criteria:
1. Foundry Coke
The particle size range is 30-80mm. It is primarily used in the foundry industry, where a larger particle size is required to support the charge structure.
2. Blast Furnace Coke
a. Large Blast Furnaces (1000-4000 m³): The recommended particle size is 40-60mm, suitable for applications requiring high air permeability.
b. Small and Medium-Sized Blast Furnaces: A particle size of 25-40mm is commonly used, balancing air permeability and cost-effectiveness.
3. Chemical and Metallurgical Coke
a. Chemical Coke: The particle size is typically less than 25mm and is used for applications such as pipe filling.
b. Metallurgical Coke: The ash content must be controlled between 11% and 14%, and the particle size is generally between 10-25mm. Some fine coke <10mm is required for sintering.
| Parameter | Typical Range/Va |
| CSR(Coke Strength after Reaction) | ≥55-65 |
| CRI(Coke Reactivity Index) | ≤25-30 |
| Size/Mesh | 25-80mm |
| Ash Content(%A) | 8-12% |
| Sulfur Content(%S) | <1% |
| Moisture(%M) | <1.5% |
| Fixed Carbon(%) | 85-90% |