Carbon Additive (Coal-based)
2026-03-16
1. Product Description
Carbon Additive https://www.crefractory.ru/%d0%be%d0%b3%d0%bd%d0%b5%d1%83%d0%bf%d0%be%d1%80%d0%bd%d1%8b%d0%b9-%d0%bf%d0%b5%d0%ba_%D0%BF%D0%BE%D1%81%D1%82%D0%B0%D0%B2%D1%89%D0%B8%D0%BA/ is a coal-based high carbon material used in metallurgical processes as a recarburizer to increase the carbon content in molten metal. The product is characterized by high fixed carbon content, low ash, low volatile matter and low sulfur content, ensuring stable carburizing performance and high carbon absorption efficiency.
It is widely used in steelmaking, foundry operations and other metallurgical processes where precise control of carbon content is required.
2. Applications
Electric Arc Furnace (EAF) steelmaking
Induction furnace melting
Cast iron production in foundries
Carbon adjustment in molten metal
3. Chemical Composition
Grade A
| Parameter | Specification |
| Fixed Carbon (FC) | ≥ 92 % |
| Ash | ≤ 7 % |
| Volatile Matter (VM) | ≤ 1 % |
| Sulfur (S) | ≤ 0.3 % |
Grade B
| Parameter | Specification |
| Fixed Carbon (FC) | ≥ 93 % |
| Ash | ≤ 6 % |
| Volatile Matter (VM) | ≤ 1 % |
| Sulfur (S) | ≤ 0.3 % |
4. Physical Properties
Appearance: Black granules or lumps
Base material: Coal-based carbon
Reactivity: Good dissolution in molten metal
Stability: High chemical stability
5. Typical Advantages
High fixed carbon content
Low sulfur and volatile matter
High carbon absorption efficiency
Stable and consistent quality
Improves melting efficiency and metal quality
