1. Product Overview

Silicon carbide balls are advanced spherical materials made from high-quality silicon carbide (SiC) as the primary raw ingredient. They are produced through precise batching, molding, and high-temperature sintering processes. This product inherits the outstanding properties of silicon carbide itself—including high hardness, excellent thermal conductivity, exceptional resistance to high temperatures, and superior chemical stability—while its spherical form enhances packing density, strength, and ease of handling during use.

Silicon carbide balls are widely recognized for their energy-saving, eco-friendly, cost-effective, and highly efficient performance. They are extensively applied in metallurgy, refractories, machinery, chemical engineering, and environmental protection industries.

• In metallurgy, silicon carbide balls are used as deoxidizers and carburizers in steelmaking, effectively replacing ferro-silicon and graphite carbon raisers. They help reduce production costs, improve molten steel purity, and increase smelting efficiency.

• In high-temperature furnaces, they are used as refractory balls or heat-storage media to improve thermal exchange efficiency, enhance furnace temperature, and save energy.

• In mechanical applications, high-purity and precision-processed silicon carbide ceramic balls are widely used in bearings, mechanical seals, and precision grinding media, offering outstanding wear resistance, corrosion resistance, and long service life under harsh operating conditions.

2. Key Features and Advantages

1. Superior High-Temperature Resistance

   • Capable of withstanding continuous use above 1600°C.

   • Advanced grades can operate reliably in environments approaching 2000°C.

2. High Hardness and Wear Resistance

   • With a Mohs hardness of 9.2, second only to diamond, SiC balls provide exceptional wear resistance and impact strength.

   • Longer service life compared with traditional materials such as alumina balls or steel balls.

3. Excellent Thermal Conductivity

   • Rapid heat transfer ensures faster temperature rise in furnaces and improved energy efficiency.

   • Effective in reducing fuel consumption and cutting operating costs.

4. Outstanding Chemical Stability

   • Highly resistant to acids, alkalis, and molten metals.

   • Maintains stable performance in harsh chemical and thermal environments.

5. Environmentally Friendly and Energy-Saving

   • Replaces part of conventional raw materials like ferro-silicon and carbon raisers.

   • Contributes to reduced emissions and supports low-carbon, green production.

6. Wide Range of Applications

   • From metallurgical smelting to high-tech precision machinery, silicon carbide balls provide versatile solutions for diverse industries.

3. Product Categories

1. Metallurgical Silicon Carbide Balls

   • SiC Content: 60%–95%.

   • Applications:

     • Deoxidizer and carbon raiser in steelmaking.

     • Replaces ferro-silicon and graphite carbon raisers.

     • Heat-storage balls in hot-blast furnaces and heat exchangers.

2. High-Purity Silicon Carbide Ceramic Balls

   • SiC Content: ≥97%.

   • Applications:

     • Bearing balls for aerospace, automotive, and precision equipment.

     • Mechanical seal balls for corrosive and high-temperature environments.

     • Precision grinding media for hard alloys, ceramics, and glass materials.

3. Recrystallized Silicon Carbide Balls

   • Characteristics: Low porosity, high strength, excellent thermal shock resistance.

   • Applications: Heat-storage media or packing materials in high-temperature kilns.

4. Typical Performance Indicators

5. Application Value

1. In Steelmaking and Metallurgy

   • Acts as an effective composite deoxidizer and carburizer.

   • Enhances steel purity, reduces slag, and improves yield.

   • More efficient and cost-effective compared with traditional agents.

2. In High-Temperature Furnaces

   • Used as refractory or heat-storage balls in blast furnaces and kilns.

   • Improves furnace temperature rise, reduces energy consumption, and boosts thermal efficiency by 20% or more.

3. In Mechanical and Industrial Equipment

   • High-purity SiC balls are critical in bearings and seals for aerospace, pumps, and semiconductor manufacturing.

   • Operate reliably in high-speed, high-temperature, and corrosive conditions.

   • Service life is several times longer than that of steel or alumina balls.

4. In Environmental and Energy Applications

   • Serve as grinding media, filtration fillers, or catalyst carriers.

   • Applied in wastewater treatment, gas purification, and clean energy technologies.

6. Comparative Advantages

• Versus Ferro-Silicon: Higher deoxidizing efficiency, less slag, lower cost.

• Versus Graphite Carbon Raiser: Faster carburization, higher carbon recovery rate.

• Versus Alumina Balls: Greater hardness, better wear resistance, superior thermal conductivity.

• Versus Steel Balls: Lighter weight, longer lifespan, capable of handling extreme conditions.

7. Packaging and Logistics

• Metallurgical SiC Balls:

  • Typically packed in woven bags or ton bags, 500 kg or 1000 kg each.

• Ceramic Precision SiC Balls:

  • Usually packed in wooden cases, plastic drums, or vacuum-sealed bags to prevent damage.

Storage and Transport: Keep dry, avoid impact, store in well-ventilated areas.

8. Customer Value and Market Prospects

As a new-generation eco-friendly material, silicon carbide balls bring significant economic and environmental benefits:

• In metallurgy, they improve efficiency, reduce raw material costs, and contribute to cleaner steelmaking.

• In mechanical industries, they enable high-precision, long-life solutions for demanding applications.

• In environmental technologies, they support sustainable wastewater and gas treatment.

With increasing global focus on energy efficiency, low-carbon manufacturing, and advanced materials, the demand for silicon carbide balls is expected to rise steadily. Their role in the green economy and high-tech manufacturing makes them a material with strong growth potential and long-term market prospects.