Abrasive Grade Brown Aluminum Oxide Grit F14-220#

Abrasive Grade Brown Aluminum Oxide Grit F14-220#

1.Yannuo high heat Brown Fused Alumina can be treated under temperature 1050℃ and 1350 ℃.
2.Yannuo high heat treated Brown Fused Alumina has the characteristic of durable, sharpness, high grinding performance, high toughness and abrasiveness.
3. Yannuo is available to produce under JIS, FEPA, ANSI, and International ISO standard. We are also available to manufacture as clients special requests.
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Product Details

We keep the road of independent technological innovation, and we inherit the mission of the national brand, making long-term contributions to the development of the Sic sand, Brown fused aluminum oxide grain, silicon carbide powder industry. All along, 'reputation' represents the market reputation of our company and has been recognized by the majority of customers. By virtue of our strong comprehensive strength and outstanding competitive advantages, we have maintained a rapid and steady development. Our corporate governance structure has been further improved and the level of governance has been continuously enhanced, laying a solid foundation for long-term development.

Blue Roasted Brown Fused Alumina for Abrasives

The high-temperature treated brown fused alumina is intensively processed series respectively baked in a kiln under 1050 and 1350. Through the calcination under the temperature of 1050℃ and 1350, the quality of brown fused alumina gets improved. By far, it has been evident the heat treated brown fused alumina is the best of the family in making advanced abrasive products.

Comparative Analysis of Brown Fused Alumina Toughness:


Ordinary Grit

Calcined at 1050

Calcined  at 1350

























Available Grain Size:

F12-220/ P12-220

Advantage of Heat-temperature Treated corundum

1.    Eliminating anomalous expansion in abrasive grain. In the smelting process in the Electric Arc Furnace, under the temperature of 900-1000, chemical compositions of Ti2O3, TiO, Tic, and TiN are oxidized which leads to the BFA crystalline increase in size that over than its normal expansion. Such kind of anomalous expansion subsequentially incur cracks in the grinding wheels after fusion by an oven. However, by high-temperature treating, anomalous expansion is avoided.

2.    Improving toughness and abrasiveness of corundum. The compressive strength of brown fused alumina increased after high heat treated. moreover, The internal stress incurred by the grain sorting process also get improved. Therefore, the coated and bonded abrasives made out of high heat treated corundum have the virtues of durable, sharpness and high grinding performance.

3.    Improve Brown fused alumina hydrophilic feature. Under 800℃ to 900℃,the volatile material and impurities, or low melting point materials will be eliminated.

4.    Improve the toughness of abrasives tools. High heat treated brown fused alumina has higher purity and cleanliness which help to improve the grain connected with the binder, lessen the using of binder and improving the abrasives toughness. By using good hydrophilic brown fused alumina, the durability of coated abrasive tools will be increased 30%-50%.

5.    Improving the appearance and grinding performance. The magnetic materials are reduced in the high-temperature processing which assures no spots in abrasives surface. 

We will ensure the effective implementation of various services, so as to improve the after-sales service and Abrasive Grade Brown Aluminum Oxide Grit F14-220# quality. Believe in ourselves, believe in our customers, our company as always with our customers, we hand in hand to create brilliance together. Any inquiry or comment is highly appreciated.
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