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Calcined Anthracite Coal Materials
High-temperature processed carbon engineered for metallurgical applications.
Calcined Anthracite Coal is produced by heating high-grade anthracite to elevated temperatures to increase carbon content, improve conductivity, and reduce moisture and volatile matter. Available as Gas Calcined Anthracite (GCA), this upgraded carbon material is widely used in electrode manufacturing, smelting operations, and advanced carbon applications requiring purity and consistency.
Calcined Anthracite Coal
Calcined anthracite is manufactured by heating anthracite coal to temperatures as high as 2000°C, depending on the calcination method. This high-temperature treatment drives off moisture, volatile components, improving the homogeneity and structural ordering of anthracite coal. By reducing volatile components and stabilizing the carbon matrix, calcined anthracite delivers improved consistency in metallurgical and electrode manufacturing processes.
Compared to un-calcined anthracite, calcined anthracite offers higher carbon content, improved thermal conductivity, increased electrical conductivity, and greater chemical and structural stability.
Typical specifications include:
- Carbon Content: >95%
- Particle Size Range: 2” to 10 µm powders
Properties
Major Carbon Properties
Calcined Anthracite Coal provides enhanced carbon performance for metallurgical and electrode applications.
- Low moisture content
- Low volatile matter
- Reduced sulfur levels
- Improved thermal conductivity
- Improved electrical conductivity
- High structural stability
- Consistent composition for metallurgical use
Applications
Calcined Anthracite Applications
Calcined anthracite is used in applications requiring conductive carbon, structural integrity, and metallurgical consistency.
Friction Products
Used in friction products as a durable carbon-based additive to balance friction stability, wear control, heat resistance, and noise performance.
Refractory
Supports carbon control and thermal stability in industrial furnace systems. Used in tamping paste formulations requiring stable carbon content and consistent conductivity.
Casting
Acts as a high-purity carbon source in smelting and metallurgical operations and provides structural carbon for high-temperature industrial components.
How It Works
Gas Calcined Anthracite (GCA)
Gas Calcined Anthracite is produced in gas-fired furnaces at temperatures lower than those used in electrical calcination. Because of the lower calcination temperature, GCA is:
- Mechanically stabilized
- Compared to un-calcined anthracite, shows an increase in electrical conductivity
- Exhibits low abrasive content
WHY ASBURY
Your Global Supply Partner of Calcined Anthracite Coal Materials
Asbury Advanced Materials supplies both Electrically Calcined Anthracite (ECA) and Gas Calcined Anthracite (GCA) in a wide range of particle sizes to support electrode manufacturing, smelting, carbon block production, and metallurgical applications worldwide.
Decades of Materials Expertise
Deep experience across carbon, graphite, and specialty materials—supporting complex, real-world applications.
Technical & Manufacturing Depth
Knowledgeable teams who understand material behavior, processing requirements, and application constraints.
Consistency, Quality & Control
Reliable materials processed to meet demanding specifications, batch after batch.
Global Reach & Supply Reliability
A diversified sourcing and distribution network designed to support customers wherever they operate.
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