High Purity White Fused Alumina

White Aluminium Oxide is also called as White Fused Alumina(WFA),it is selected industrial alumina powder as raw material,melted by the electrical arc after high temperature more than 2000 degrees,then made into different grain size through by crushing and reshaping,magnetic separation,screening.
It has the characteristics of dense texture,highhardness,high purity,good self-sharpness&grinding ability,small heating power,high efficiency,acid and alkali corrosion resistance, high temperature resistance and good thermal stability

 1 . White Fused Alumina  Main Properties ：

2 .  Product Main Features:

Higher Hardness,slight lower toughness;

High Purity,Good Self-sharpness;

Good Grinding and polishing Ability;

Good Thermal Stability.

3. Main Application of White Fused Alumina in Coated Abrasives Applications:

White Aluminium oxide is widely used for making coated abrasives such as sand belts, sand paper, flap discs,

flap wheels for various polishing purposes.

In addition, it is also widely used in the following applications of :

Boated abrasives: resin cutting discs and grinding wheels etc.;

Sandblasting Media;

Grinding,polishing and lapping media;

High grade refractories.

5. Package Details of White Fused Alumina ：

25kg bag + Pallet;

25kg bag + Ton Bag;

Ton Bag(Super Sack)

Special packages can be customized.

6 . The direct cost of the product itself
1. Purity grade
The core component of white corundum is Al ₂ O ∝, and the higher the purity (such as 99% → 99.5% → 99.9%), the more difficult it is to purify the raw material, and the price difference is significant:
-Ordinary grade (95% -97% Al ₂ O ∝): suitable for low precision scenarios such as rough grinding and rust removal, with a Medium price 
-High purity (99% Al ₂ O3): used for precision grinding (such as cutting tools, bearings), priced at approximately  Medium to high price;
-Ultra high purity (above 99.5%): used in the semiconductor and optical fields, with a high price 
 

2. Particle size and machining accuracy
The finer the particle size and the more uniform the particle distribution, the higher the processing cost:
-Coarse particle size (8-46 mesh): The crushing and screening process is simple and the price is relatively low;
-Fine grained (150-240 mesh): requires multiple screenings, increasing costs by 20% -30%;
-Micro powder grade (below W20): requires ultrafine grinding and grading, with a price 2-5 times that of coarse particle size (such as W5 micro powder, which can cost 10000-30000 yuan/ton).

Summary: Cost optimization principles
When choosing white corundum, it is important to avoid focusing solely on the "lowest unit price" and instead calculate the "comprehensive cost per unit of qualified product":
-For low precision and low value scenarios (such as rust removal of steel structures), priority should be given to selecting ordinary pure coarse-grained abrasives to control direct costs;
-For high-precision and high-value scenarios (such as aircraft engine blade grinding), high-purity and uniform particle size products should be selected to reduce rework and improve efficiency, thereby lowering overall costs.
Essentially, cost and performance need to form a "matching balance" - neither wasting performance nor sacrificing quality.

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