Brown Corundum Manufacturer & Supplier
Superior Hardness (9.0 Mohs) – Outperforms many abrasives in wear resistance.
Thermal & Chemical Stability – Withstands extreme environments.
Customizable Granulation – Available in grits tailored to specific applications.
Cost-Effective Efficiency – Long-lasting performance reduces operational downtime.
- Product Introduction
Products Description
Brown corundum from Fanchuang is produced by using bauxite and coke as the main raw materials and is smelted at high temperatures in an electric arc furnace. The grinding tools made from it are suitable for grinding metals with high tensile strength, such as various general steels, malleable cast iron, hard bronze, etc. It can also be used to manufacture refractory materials. Brown corundum has the characteristics of high purity, good crystallization, strong fluidity, low linear expansion coefficient, and corrosion resistance. After being verified by dozens of refractory production enterprises, this product has the features of no explosion, no powdering, and no cracking during application. Especially its cost-performance ratio is much higher than that of traditional brown corundum, making it the aggregate and filler for brown corundum-based refractory materials.
Common brown corundum models
| section sand | 0-1mm 1-3mm 3-5mm 5-8mm | |
| fine powder | 200#-0 320/325-0 | |
| grain size sand | F/P | 12# 14# 16# 20# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220# |
| micro powder | W | W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 |
| JIS | 240# 280# 320# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# | |
| EU | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 | |
Product Picture
Chemical Index
Chemical index of Brown corundum from Fanchuang
| Grit range | Al₂O₃ | TiO₂ | CaO |
|
F4-F80 (P12-P80) |
95.0-97.5 | 1.5-3.8 | ≤0.45 |
|
F90-F150 (P100-P150) |
94.0-97.5 | ||
|
F180-F220 (P180-P220) |
93.0-97.5 | ||
| F220 | ≥92.0 |
Why choose Fanchuang
Premium Raw Material Selection
We source bauxite with an Al₂O₃ content of over 85% to ensure the material meets our baseline requirements for purity and hardness. This specific grade of raw material is selected to support consistent abrasive performance throughout production.
Extended Secondary Refining Process
Following the initial smelting phase, the brown corundum undergoes an additional three hours of refining. This extended processing time is designed to improve the crystal structure and overall toughness of the material, which translates to better grinding efficiency in industrial applications.
Precision Manual Grading
Once the corundum is crushed, each batch is manually screened to identify and remove inconsistencies. Our team classifies the particles by size to ensure a uniform grain distribution, which is critical for reliable performance in abrasive applications.
Advanced Purification Technology
We use high-power 5-channel magnetic separators to remove iron and silicon impurities from the material. This purification method is optimized to maintain a balance between production costs and the final product quality, offering a more effective solution than standard industry practices.
Relentless Quality Control
Our quality control team oversees every stage of production, from the initial inspection of raw materials to the final packaging. By combining experienced personnel with strict testing protocols, we maintain consistent quality standards across all batches.
Products usage
The main uses of brown fused alumina sand from Fanchuang:
Refractory materials, grinding wheels, sandblasting rust removal, polishing and grinding, mechanical parts polishing and refurbishment. Surface treatment: stainless steel, surface decontamination, matte effect, slag removal. Iron workpieces, rust prevention, decontamination, scale removal, coating application, coating adhesion. Aluminum workpieces, rust removal, surface strengthening, polishing. Copper workpieces, scale removal, matte effect. Glassware, crystal sandblasting, pattern engraving. Plastic products (hardwood products), matte effect. Special fabrics, long pile processing and effect patterns.
Factory picture
Packing & transportation
FAQ
Q: Who are we ?
A: We are Zhengzhuo Fanchuang Science and Technology Co., Ltd., a manufacturer based in Zhengzhou, China. Our primary focus is the production of industrial raw materials, specifically brown fused alumina (BFA) and related abrasive products.
Q: Can you customize product specifications or packaging?
A: Yes, we can accommodate specific requests. If your application requires adjustments to the standard brown corundum specifications-such as grain size, chemical composition, or packaging weight-please provide your technical requirements for review.
Q: Do you offer samples?
A: Yes, we provide free samples for quality assessment. The sample material is provided at no cost, though the customer is typically responsible for the shipping fees.
Q: How long does it take to receive a sample?
A: Standard samples are processed and ready for dispatch within 1 to 3 business days.
Q: How do you control product quality?
A: Quality control is maintained through routine batch testing. We verify the chemical composition-specifically Al₂O₃ and Fe₂O₃ content-as well as physical properties like grain shape and density to ensure the material meets industrial performance standards.
Q: What payment methods do you accept?
A: We accept standard international payment methods, including Telegraphic Transfer (T/T), Letter of Credit (L/C), PayPal, and Western Union.
Q: What is your primary shipping port?
A: We primarily ship from Qingdao Port. However, we can coordinate shipments from other Chinese ports depending on your specific logistical requirements or destination.
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