Green Silicon Carbide (GC) - The Ultimate Abrasive Material for Demanding Applications

Green Silicon Carbide (GC) - The Ultimate Abrasive Material for Demanding Applications

Product Overview

Green Silicon Carbide (SiC) is an ultra-hard, synthetic abrasive material produced through an electric arc furnace reaction of high-purity quartz sand and petroleum coke. Characterized by its distinctive green-black color and exceptional purity, Green SiC contains over 99% silicon carbide with minimal metallic impurities. This high-performance material stands out for its extreme hardness, sharp crystal structure, and outstanding thermal conductivity, making it the preferred choice for processing hard, brittle materials and specialized industrial applications where precision and efficiency are paramount.

Key Properties & Advantages

• Exceptional Hardness: With a Mohs hardness of 9.5 and a Knoop hardness of 2700-3000 kg/mm², Green SiC is significantly harder than white aluminum oxide and most other conventional abrasives, second only to diamond and boron carbide. This enables it to effectively grind and cut the hardest materials.

• High Purity & Chemical Inertness: Our Green SiC maintains a consistent purity of 99.3% minimum, with particularly low levels of iron, aluminum, and calcium impurities (typically below 0.2% Fe₂O₃). This ensures minimal contamination during processing and makes it suitable for applications requiring chemical stability.

• Sharp, Brittle Crystals & Self-Sharpening Effect: Green SiC grains fracture into sharp, angular fragments with excellent cutting edges. During use, these grains undergo micro-fracturing, continuously revealing fresh, sharp edges. This "self-sharpening" property ensures consistent, aggressive cutting action and reduces glazing or loading.

• Excellent Thermal Conductivity: It efficiently dissipates heat generated during grinding or cutting processes, helping to prevent thermal damage to both the workpiece and the abrasive tool, thereby extending tool life.

• High-Temperature Strength & Oxidation Resistance: Green SiC retains its strength and structural integrity at temperatures up to 1600°C, making it suitable for high-temperature applications and refractory formulations.

Primary Industrial Applications

• Abrasive Tools Manufacturing: The primary use of Green SiC is in the production of high-performance grinding wheels, honing stones, and abrasive sticks, especially for sharpening hard alloy tools (like tungsten carbide), processing titanium alloys, and finishing high-speed steel tools.

• Lapping and Polishing: Its fine powders and micro-powders are ideal for precision lapping and polishing of optical glass, quartz crystals, semiconductor wafers (silicon), advanced technical ceramics, and gemstones, achieving superior surface finishes.

• Surface Treatment & Blasting: Used in blasting and surface preparation for delicate components where minimal substrate contamination is critical, such as in the aerospace and medical device industries.

• Refractory & Ceramic Additive: Incorporated into high-alumina refractories and specialty ceramics to significantly enhance their thermal shock resistance, mechanical strength, and abrasion resistance.

• Wire Sawing: Serves as the key abrasive material in slurries for multi-wire sawing of silicon ingots for photovoltaic cells and sapphire ingots for LED substrates.

• Specialty Coatings & Composites: Used as a functional filler in polymer composites and wear-resistant coatings to improve hardness and durability.

Why Choose Henan Yumo's Green Silicon Carbide?

• Manufacturing Expertise: We control the entire production process, from raw material selection to final classification, ensuring superior quality and batch-to-batch consistency.

• Strict Quality Control: Our in-house laboratory performs rigorous checks on chemical composition and particle size distribution, guaranteeing that every shipment meets your precise specifications.

• Full Range of Specifications: We offer one of the most comprehensive portfolios of grit sizes and micron powders in the industry, from coarse grits for heavy stock removal to ultra-fine powders for mirror finishing.

• Proven Export Experience: We have successfully supplied high-quality Green SiC to clients worldwide, including over 12 partners in the Iranian market, and understand the requirements for international logistics and documentation.

Packaging & Logistics

• Standard Packaging: 25 kg bags (woven PP with inner plastic liner), 1000 kg jumbo bags.

• Custom Packaging: Available upon request (e.g., vacuum packing for micro-powders).

• Lead Time: 7-15 days for standard sizes.

• MOQ: 1 Metric Ton.

Contact Us Today for a competitive quotation, technical data sheets, or to discuss your specific application requirements. Let us provide you with the finest Green Silicon Carbide to optimize your manufacturing process.