Metallurgical Refractory
Microporous Carbon Block
Microporous Carbon Block for blast furnace applications is manufactured using high-quality high-temperature electrically calcined anthracite as the primary raw material, blended with selected additives and coal tar pitch as binder. Through a rigorous process of kneading, forming, roasting, and precision machining, the product delivers excellent microporous structure, low gas permeability, outstanding resistance to molten iron erosion, and a low oxidation rate -- purpose-built for blast furnace hearth and bottom lining.
Avg. Pore Diameter
Porosity <1μm
Compressive Strength
Thermal Conductivity W/(m·K)
Technical Details
Product Information
| Items | Unit |
YXMC-1
Guarantee
Typical
|
YXMC-2
Guarantee
Typical
|
|||
|---|---|---|---|---|---|---|
| Bulk Density ≥ | g/cm³ | 1.63 | 1.65 | 1.65 | 1.68 | |
| Apparent Porosity ≤ | % | 16 | 15 | 16 | 14 | |
| Modulus of Compression ≥ | MPa | 38 | 41 | 40 | 49 | |
| Oxidation Rate ≤ | % | 16 | 15 | 16 | 14 | |
| Permeability ≤ | mDa | 9.0 | 8.0 | 8.0 | 7.0 | |
| Iron Erosion ≤ | % | 30 | 28 | 28 | 26 | |
| Thermal Conductivity ≥ | 300°C | W/(m·K) | 9.0 | 11.0 | 12.0 | 13.0 |
| 600°C | 14.0 | 15.0 | 15.0 | 16.8 | ||
| Average Pore Diameter | μm | 0.5 | 0.4 | 0.5 | 0.3 | |
| Porosity Capacity <1μm ≥ | % | 70 | 72 | 70 | 72 | |
| Alkali Resistance | Grade | U or LC | U | U or LC | U | |
| Ash ≤ | % | 20 | 18 | 20 | 18 | |
Superior Microporous Structure
Manufactured with high-quality electrically calcined anthracite as the primary raw material, delivering outstanding microporous characteristics with over 70% of pore volume below 1μm for exceptional performance.
Excellent Thermal Conductivity
High thermal conductivity values reaching up to 16.8 W/(m·K) at 600°C for YXMC-2, ensuring efficient heat dissipation and stable temperature management in blast furnace hearth and stack areas.
Outstanding Iron Erosion Resistance
Exceptional resistance to molten iron erosion with iron erosion index as low as 26% (typical for YXMC-2), significantly extending lining service life and reducing maintenance intervals in high-intensity blast furnace operations.
High Compressive Strength
Robust block structure with modulus of compression up to 49 MPa (typical YXMC-2), providing structural integrity under extreme pressure conditions encountered in blast furnace environments.
Low Permeability
Ultra-low gas permeability as low as 7.0 mDa (typical YXMC-2) effectively prevents infiltration of molten iron and alkali vapors into the carbon block, maintaining long-term structural stability of the furnace lining.
Low Oxidation Rate & High Alkali Resistance
Low oxidation rate of ≤16% combined with U-grade alkali resistance ensures the carbon block maintains its physical and chemical properties over extended service periods under the harsh oxidizing and alkaline conditions inside the blast furnace.
Microporous Carbon Blocks (YXMC-1 & YXMC-2) are manufactured using premium electrically calcined anthracite as the primary raw material, with coal tar pitch as binder, processed through mixing, forming, firing, and precision machining. They offer excellent microporous characteristics, low permeability, superior molten iron erosion resistance, and low oxidation rates, making them the preferred refractory lining material for critical blast furnace zones.
Blast Furnace Hearth Lining
Applied to the hearth bottom and sidewall lining of blast furnaces, where resistance to molten iron erosion, high thermal conductivity, and structural strength are critical to campaign life.
Blast Furnace Stack & Belly
Used in the lower stack and belly sections where combined resistance to thermal stress, alkali attack, and abrasion is required for stable long-term furnace operation.
Large & Medium Blast Furnaces
Specifically engineered for the demanding conditions of large and medium-scale blast furnace operations in integrated steel plants, where performance consistency directly impacts production efficiency and campaign length.
High-Intensity Ironmaking Operations
Ideal for high-pressure, high-temperature ironmaking processes where enhanced grade YXMC-2 delivers superior bulk density (≥1.65 g/cm³) and compressive strength (≥40 MPa) to withstand extreme operational stresses.
Industries Served
Manufacturing Process
How It's Made
Microporous Carbon Blocks (YXMC-1/YXMC-2) are produced from premium electrically calcined anthracite with coal tar pitch as binder, engineered for blast furnace hearth and stack applications.
Raw Material Selection
High-quality electrically calcined anthracite is selected as the primary raw material, combined with carefully measured additives and coal tar pitch as binder.
Mixing & Forming
The blended materials are thoroughly mixed and formed under controlled pressure into dense block shapes, establishing the foundational microporous structure.
High-Temperature Firing
Formed blocks are fired at high temperatures to develop optimal bulk density, compressive strength, and the characteristic low permeability and low oxidation rate.
Precision Machining
Fired blocks undergo precision machining to meet exact dimensional tolerances, ready for installation in blast furnace hearth bottoms and stack lining positions.
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