Product Overview
Black Silicon Carbide (SiC) 90% blocks are engineered refractory materials designed for extreme thermal environments and aggressive industrial conditions. With high SiC purity, these blocks deliver excellent thermal conductivity, oxidation resistance, and mechanical strength, making them a preferred solution for furnace linings, kilns, and metallurgical reactors.
Manufactured under strict quality control, our SiC blocks ensure consistent performance, longer service life, and reduced maintenance downtime-key factors for cost-efficient operations.
Key Advantages
High Thermal Stability
Maintains structural integrity under continuous high temperatures.
Superior Oxidation Resistance
Performs reliably in oxidizing and reducing atmospheres.
Excellent Thermal Conductivity
Enables efficient heat transfer and energy savings.
Strong Wear & Corrosion Resistance
Suitable for harsh industrial environments and chemical exposure.
Low Porosity Structure
Improves durability and minimizes slag penetration.
Technical Specifications
| Parameter | Value |
|---|---|
| SiC Content | ≥ 90% |
| Fe₂O₃ | ≤ 1.5% |
| Bulk Density | 2.60 – 2.75 g/cm³ |
| Apparent Porosity | ≤ 18% |
| Cold Crushing Strength | ≥ 90 MPa |
| Maximum Service Temperature | 1600°C |
| Thermal Conductivity | High |
| Shape | Blocks / Custom Shapes |
| Size | Customizable |
Typical Applications
Black SiC 90% blocks are widely used in:
Refractory linings for industrial furnaces
Steelmaking furnaces (EAF, ladle, converter zones)
Non-ferrous metal smelting furnaces
Cement rotary kilns
Waste incineration systems
Glass and ceramic kilns
Their thermal shock resistance and abrasion durability make them ideal for areas exposed to rapid temperature fluctuations and molten materials.
Why Choose Our SiC Blocks
Stable Raw Material Supply
Ensures consistent chemical composition and quality.
Precision Manufacturing
Advanced forming and sintering processes guarantee uniform density.
Custom Engineering Support
Sizes and shapes tailored to your furnace design.
Strict Quality Inspection
Each batch tested for physical and chemical performance.
Reliable Delivery Capability
Flexible logistics solutions for bulk industrial orders.
Packaging & Logistics
Standard export wooden pallets or crates
Moisture-proof packaging available
Bulk shipment or container loading supported
Lead time: typically 7–15 days depending on order volume
Get a Quote
Looking for reliable refractory solutions with stable performance and competitive pricing?
Contact us today for:
Technical consultation
Customized specifications
Latest pricing & delivery schedule
FAQ
Q1: What is the benefit of 90% SiC content in refractory blocks?
A higher SiC ratio provides better thermal conductivity, oxidation resistance, and longer service life, especially in high-temperature zones.
Q2: What is the maximum working temperature of these blocks?
Typically up to 1600°C, depending on furnace atmosphere and operating conditions.
Q3: Can you manufacture custom sizes and shapes?
Yes. We support custom dimensions and drawings, including special-shaped blocks for complex linings.
Q4: Are these blocks suitable for steelmaking furnaces?
Yes. They are widely used in EAF, ladle furnaces, and converter linings, particularly in high-wear areas.
Q5: What industries commonly use SiC refractory blocks?
Main applications include steelmaking, non-ferrous smelting, cement kilns, glass furnaces, and waste incineration systems.
Q6: How do SiC blocks compare to traditional fireclay or high-alumina bricks?
SiC blocks offer higher thermal conductivity, better abrasion resistance, and superior thermal shock performance, resulting in longer lifespan.
Q7: What is the typical service life?
Service life depends on working conditions, but SiC blocks generally last significantly longer than conventional refractory materials, reducing replacement frequency.
Q8: Are the blocks resistant to chemical corrosion?
Yes. They show strong resistance to slag, acids, and alkalis, making them suitable for aggressive environments.
Q9: What is the typical lead time for orders?
Standard orders are usually delivered within 7–15 days, depending on quantity and customization requirements.
Q10: What packaging methods are used?
Products are packed on export-grade wooden pallets or crates, with moisture-proof protection for safe transport.
Q11: Can you provide samples before bulk orders?
Yes. Sample blocks or small trial quantities can be arranged for quality evaluation.
Q12: What quality control measures are applied?
Each batch undergoes chemical composition analysis and physical property testing to ensure consistency.
Q13: What information is needed for an accurate quotation?
Please provide size, quantity, application, and technical requirements (temperature, atmosphere, etc.) for a precise quote.
Q14: Do you support long-term supply contracts?
Yes. We offer stable supply agreements for ongoing industrial demand.
Q15: Can these blocks improve energy efficiency?
Yes. Due to high thermal conductivity, they help optimize heat transfer and reduce energy consumption in furnaces.
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