Cost-Effective Carbon Raiser (GCA)
Gas Calcined Anthracite (GCA) is manufactured by calcining high-grade anthracite coal in vertical gas-fired shaft furnaces at temperatures typically reaching 1,200 degC to 1,300 degC. This specialized thermal process removes volatile matter and moisture, resulting in a dense, high-purity carbon raiser with stable physical and chemical properties.
GCA is primarily used as a cost-effective carbon additive in the steelmaking and foundry industries. Its reliable fixed carbon content and low electrical resistivity make it an ideal choice for the production of high-quality carbon steels, grey iron, and ductile iron castings.
A video of the Gas Calcined Anthracite (GCA) can be found by clicking here Gas Calcined Anthracite Sampling.
Specification:
| Size | mm | 10.0-40.0 | 1.0-5.0 | 0.5-6.0 |
|---|---|---|---|---|
| Fixed Carbon (FC) | min | 90.0% | 95.0% | 95.0% |
| Volatile Matter (VM) | max | 2.00% | 1.00% | 1.00% |
| Sulphur (S) | max | 0.30% | 0.50% | 0.50% |
| Nitrogen (N) | max | - | 300ppm | 300ppm |
| Ash | max | 8.50% | 5.00% | 5.00% |
| Moisture (H2O) | max | 2.00% | 1.00% | 1.00% |
Packing:
- 1000kg jumbo bags (without bottom opening).
- Securely packed: 2 bags per pallet.
Customer Experiences
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