White Fused Alumina
White fused alumina is produced by electrically melting high-purity calcined alumina, delivering a brilliantly white, ultra-pure abrasive and refractory material with minimal impurities. Its exceptional purity, moderate hardness, and excellent self-sharpening properties make it the preferred choice for precision grinding, optical polishing, advanced ceramics, and contamination-sensitive refractory applications.
What Is White fused alumina?
White fused alumina — commonly referred to as white corundum — is a high-purity aluminum oxide material produced by electrically melting premium calcined alumina in an arc furnace at temperatures exceeding 2000°C. The use of high-purity raw materials and the controlled fusion process results in a brilliantly white product with an alumina content typically exceeding 99%, setting it apart from brown fused alumina and other lower-purity corundum grades.
Upon cooling and crystallization, white fused alumina forms a dense, hard corundum structure characterized by its distinctive white color — a direct indicator of its exceptional chemical purity and near-absence of iron oxide and other metallic impurities. The fused block is then crushed, sized, and classified into various grain sizes and powder grades to meet the specific requirements of abrasive, refractory, and ceramic applications across a broad range of industries.
Its combination of high purity, moderate toughness, and excellent self-sharpening behavior during grinding makes white fused alumina one of the most widely specified premium abrasive and refractory materials in global industrial markets today.
Why Choose White Fused Alumina?
-
Ultra-High Purity : With alumina content consistently exceeding 99%, white fused alumina is the go-to material for contamination-sensitive applications in electronics, precision optics, biomedical ceramics, and food-grade processing equipment manufacturing.
-
Excellent Self-Sharpening Properties: Its moderate toughness allows abrasive grains to fracture cleanly during use, continuously exposing fresh cutting edges — delivering cooler, more precise grinding with reduced surface burn risk on sensitive workpieces.
-
Superior Surface Finish Quality: White fused alumina produces exceptionally smooth, consistent surface finishes, making it ideal for precision grinding, lapping, polishing, and finishing of hardened steels, optical glass, and advanced ceramic components.
-
Outstanding Thermal Stability:Resistant to temperatures exceeding 1800°C, white fused alumina performs reliably as a refractory material in high-temperature kilns, furnaces, and thermal processing equipment where purity and heat resistance are both critical.
-
Low Magnetic Content: Minimal iron and metallic impurity levels result in extremely low magnetic content, meeting strict specifications for electronic component manufacturing and other magnetically sensitive industrial processes.
-
Versatile Grade Availability:Available in a wide range of grain sizes — from coarse macro grits to sub-micron powders — white fused alumina adapts readily to diverse application requirements across abrasives, refractories, and technical ceramics.
業界が直面する課題
High Raw Material Cost
エネルギー集約型生産
Strict Purity Maintenance
Lower Toughness Compared to Brown Fused Alumina
製品概要
アルミナ
WCO-F-CER/G100
アルミナ
WCO-F-AER/G500
Why Use Our White fused alumina
Exceptional Hardness & Wear Resistance
With a Mohs hardness of 9, white fused alumina ranks among the hardest abrasive materials available. Its superior wear resistance ensures longer tool life, reduced replacement frequency, and consistently high cutting performance across demanding industrial applications.
Precise Grain Size & Uniform Distribution
Strictly controlled crushing and grading processes ensure consistent particle size distribution. Uniform grain shape enhances surface finish quality, provides predictable abrasive performance, and meets tight tolerances required in precision grinding and polishing operations.
Low Iron Content & Minimal Contamination Risk
The white fused alumina's ultra-low iron content minimizes the risk of workpiece contamination. This makes it the preferred choice for processing stainless steel, optical glass, and other materials where surface purity and appearance are critical.
関連アプリケーション
業界別ソリューション
梱包・物流サービス
安全でカスタマイズ可能な梱包
製品は、輸送中の清潔さと完全性を確保するため、耐久性があり防湿性のあるパウチまたはバルク容器に収納されるものとします。特殊なサイズや取り扱い要件に合わせた、カスタマイズされた梱包オプションもご用意しています。.
信頼性が高く、柔軟なグローバル配送
信頼できる物流パートナーと連携し、海上、航空、陸路の各輸送手段に対応した柔軟な配送体制を提供しています。世界中の目的地へ、迅速かつ安全に貨物を配送いたします。.
注文・サポートの専任調整
弊社では、注文の確定から最終出荷に至るまでの追跡および記録について、特別なサポートを提供しています。サプライチェーンの円滑な運用を保証するため、技術面および物流面でのサポートもご用意しております。.
あなたにぴったりの産業用ソリューションを見つけませんか？
ご注文方法！
詳細なご質問をお送りいただくか、お客様の活性炭のご要件に合わせたお見積もりをご依頼ください。.
