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Green Silicon Carbide

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Green Silicon Carbide
Green Silicon Carbide (GSC, designation GC) is an α-SiC produced by high-temperature smelting of high-purity quartz sand and premium petroleum coke in a resistance furnace at above 2200℃. It appears as green, translucent hexagonal crystals.

Product Specifications

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Item Typical Value
Color Green, translucent
Crystal Form Hexagonal, α-SiC (6H dominant, minor 15R)
Mohs Hardness 9.3~9.4
Knoop Hardness 2940~3300 kg/mm²
Microhardness 2940~3300 kg/mm²
Density ≥3.2 g/cm³
Loose Bulk Density 1.2~1.6 g/cm³
Melting Point Approx. 2600℃
Refractoriness Approx. 1900℃
Key Properties Good self-sharpening, brittle and sharp, relatively high purity, good thermal conductivity

Chemical Composition

Constituent Grain (%) Microgrit (%)
SiC ≥98.0 97.0~99.0 (high-purity grades ≥99.5)
Fe₂O₃ ≤0.35 0.3~0.8
Free Carbon (F·C) ≤0.25 0.2~0.3

Green SiC grain typically contains ≥98% SiC, with high-purity products exceeding 99%. Microgrit SiC content ranges from 97%~99%, with slightly relaxed upper limits for Fe₂O₃ and free carbon at finer sizes.

Production Specifications

Green SiC is available across grain, microgrit, and P-series systems with a broad size range.

Specification Type Common Grit Range
Bonded Abrasive Grains (F Series) F4~F220 (FEPA)
Microgrit F230~F1200 and finer; 1200#, 1500#, D50 down to 8.0±0.6 μm
Coated Abrasive P Grit P series (on request)
Ultrafine / Mirror-Polishing Microgrit 2000#~6000# and finer

Application Scenarios

Cemented Carbide & Special Alloys: Grinding and lapping of cemented carbide and titanium alloys.

Optical & Semiconductor Materials: Optical glass, semiconductor wafers, monocrystalline/polycrystalline silicon wire sawing, and precision polishing.

Precision Grinding & Honing: Cylinder liner honing, high-speed steel tool finishing, and hard-brittle non-metal machining.

Refractories & High-Temperature Ceramics: Advanced refractories, high-temperature ceramics, recrystallized SiC products, and heating elements.

Ceramics & Stone Polishing: Lapping and polishing of ceramics, marble, and other brittle non-metallic materials.

Our Facilities

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  • 1773993034893525307517128704
  • 1773993033893525306179145728
  • 1773993033893525304778248192
  • 1773993032893525300562972672
  • 1773993032893525299082383360
  • 1773993031893525296293171200
  • 1773993031893525294871302144
  • 1789955364129206

FAQ

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Q1: Is your company a trading firm or a manufacturing plant? Where are your facilities located?
We are an export-oriented enterprise that integrates manufacturing and sales; we are not an intermediary. Our headquarters—handling international sales, order processing, documentation, and after-sales service—is located in the Liaocheng Economic and Technological Development Zone, serving as the hub for global client relations, order negotiations, and cross-border services. Our production facility is situated in Chiping District, Liaocheng City, and specializes in the R&D, smelting, processing, and testing of white fused alumina, brown fused alumina, and other fused alumina products. This allows us to manage the entire supply chain—from primary production and rigorous quality control to direct export.


Q2: What is your production capacity and supply capability? Can you ensure a stable, long-term supply?
Our production base in Chiping features mature production lines and comprehensive processing equipment, enabling large-scale, continuous manufacturing. We offer a stable supply of our full range of white fused alumina, brown fused alumina, and related fused alumina products. With ample inventory and well-organized production scheduling, we are fully equipped to handle bulk orders, recurring annual orders, and urgent requests during peak seasons, ensuring a reliable, long-term supply for our global clients.


Q3: What are your primary export products, and what are your core offerings?
Our core exports consist of three main series of fused alumina materials: brown fused alumina, white fused alumina, and other fused alumina products. We offer a comprehensive range of specifications and particle sizes that meet various international procurement standards. Brown fused alumina is our flagship product for cost-effective industrial abrasives and refractory raw materials; white fused alumina is designed for high-purity, high-precision grinding and polishing applications; and our broader fused alumina line serves high-end refractory, specialty ceramic, and precision abrasive tool sectors—covering the full spectrum of procurement needs across all market tiers.


Q4: What are the specific applications for these three types of fused alumina, and how should one choose the right product? 1. Brown Fused Alumina: Characterized by high toughness, excellent wear and impact resistance, and a strong price-performance ratio. It is suitable for general industrial applications such as metal sandblasting (rust removal), hardware grinding, the manufacturing of grinding wheels and sandpaper, metallurgical castable refractories, and lining materials for standard industrial furnaces. It serves as a versatile, all-purpose abrasive and refractory raw material.

2. White Fused Alumina: Features high purity, high hardness, and excellent self-sharpening properties, with a pure white appearance free from impurities. It is ideal for high-precision and high-cleanliness applications, including the polishing of precision molds, grinding of aerospace components, finishing of electronic materials, and the production of high-end refractory products and precision ceramics.

3. Fused Alumina (High-Purity/Specialized): Possesses a dense structure, exceptional thermal stability, and high resistance to both heat and corrosion. It serves as a core raw material for high-end, specialized refractories, structural ceramics, precision grinding media, and linings for high-temperature industrial kilns, making it well-suited for demanding, high-performance operating environments.

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