White Aluminum Oxide: The Ultimate High- Performance Abrasive & Industrial Material
Engineered for Precision, Durability, and Versatility

White Aluminum Oxide (Al₂O₃) stands at the forefront of advanced industrial materials, combining exceptional hardness, thermal resilience, and chemical stability. Synthesized through the electric arc fusion of high-purity alumina, this synthetic ceramic achieves a near-perfect crystalline structure — delivering unmatched performance in abrasive blasting, precision polishing, refractory engineering, and high-tech applications. With a Mohs hardness of 9.8 and melting point exceeding 2,050°C, it outperforms conventional abrasives like silicon carbide or brown aluminum oxide in wear resistance and operational lifespan.

Why Industries Choose White Aluminum Oxide

1. Superior Abrasive Efficiency
   Sharp, blocky grains fracture predictably under pressure, continuously exposing fresh cutting edges. This self-renewing characteristic reduces consumption by 25–40% compared to irregular-shaped abrasives, maintaining consistent surface finishes in operations from heavy-duty shipyard blasting to microelectronics wafer polishing.

2. Thermal & Chemical Resilience
   Stable in temperatures up to 1,800°C and resistant to acids, alkalis, and oxidation, white aluminum oxide is ideal for:

   • Refractory castables lining steel furnaces

   • Corrosion-resistant coatings for chemical reactors

   • High-friction brake pad reinforcements

3. Contaminant-Free Processing
   With typical purity levels ≥99.5%, it prevents iron contamination in stainless steel finishing or silicon wafer production. Low soda content (<0.2%) further eliminates alkali-induced corrosion risks.

Critical Applications Across Sectors

• Surface Preparation: SA 3-grade metal cleaning for aerospace/automotive coatings.

• Precision Optics: Lapping lenses and mirrors with F1000–F4000 microgrits.

• Advanced Ceramics: Reinforcing zirconia/alumina composites for biomedical implants.

• Electronics: Cutting sapphire ingots for LED substrates using diamond-bonded WFA wheels.

Technical Specifications Tailored to Your Needs

White aluminum oxide adapts to diverse industrial requirements through controlled particle engineering:

• Grit Sizes: Coarse grits (F12–F36) for rapid stock removal; ultra-fine powders (F800–F4000) for mirror finishes.

• Density & Toughness: Bulk density of 1.75–1.95 g/cm³ ensures efficient impact energy transfer, while friability adjusts from 5–15% for brittle materials (glass) or ductile metals (aluminum).

• Custom Treatments: Resin coating improves flowability in vibratory finishing; heat treatment enhances fracture toughness for heavy grinding.

Sustainability Advantage

Unlike expendable abrasives, white aluminum oxide supports 5–7 reuse cycles in blasting operations — reducing raw material consumption by 60%. Its low heavy metal content (<50 ppm) also complies with REACH and RoHS environmental standards.

Henan Yumo’s Material Excellence

As a pioneer in high-purity alumina solutions, Henan Yumo delivers white aluminum oxide engineered for peak performance:

• Purity Control: 99.7% Al₂O₃ content guaranteed via XRF batch certification.

• Particle Uniformity: Laser diffraction-verified sizing with ≤5% deviation.

• Technical Partnership: Co-developing grain geometry and treatments for your specific process — from wet blasting to CMP slurries.