WFA Abrasive (P-grit)

Inquire Now

As a professional supplier of abrasives and technical solutions, Alfa Chemistry offers white fused alumina (WFA) abrasive in P-grit form, engineered for high-performance coated abrasive applications. Produced by fusing high-purity alumina powder (Al₂O₃>98%) in electric arc furnaces at temperatures above 2000°C, WFA is known for its superior purity, high hardness, and exceptional cutting ability. Following fusion, the material is cooled, crushed, and precision-shaped into grains suitable for use in advanced abrasive systems.

Key Features

High Purity and Hardness: Over 98% Al₂O₃ content ensures superior hardness and consistent performance.
Dense and Uniform Crystal Structure: It contributes to the abrasive's durability and effectiveness.
Excellent Surface Finish: Capable of achieving high levels of surface smoothness and cleanliness.
Versatile Application: Ideal for a wide range of materials, especially challenging steels.

Available Grades and Applications

We offer specific grades of WFA P-grit abrasives, each engineered to provide distinct performance characteristics for various demanding applications:

HG-AB025 Abrasive

This grade features pointed abrasive grains with a low bulk density. Coated abrasives produced with HG-AB025 are characterized by their exceptional sharpness and high grinding efficiency, despite having lower toughness. This makes HG-AB025 an ideal choice for the production of sandpaper, nylon wheels, sponge sanding blocks.

HG-AB026 Abrasive

HG-AB026 offers polyhedral grains with a more regular particle shape and sharp angles, alongside a moderate bulk density. Coated abrasives made with HG-AB026 strike an excellent balance between hardness and moderate toughness, leading to higher overall grinding efficiency. Abrasives manufactured using HG-AB026 also demonstrate superior wear resistance compared to those made with HG-AB025, making them suitable for durable sandpaper, long-lasting nylon wheels, resilient sponge sanding blocks.

Technical Data

Chemical Composition

Al₂O₃	Fe₂O₃	Na₂O	SiO₂
99.52%	0.02%	0.24%	0.1%

Physical Properties

Type	Mohs Hardness	Color	Microhardness	Melting Point	Specific Gravity	Hydrophilia (F46)	Toughness (F24)
α-Al₂O₃	≥9.0	White	2200-2300	2000 ℃	≥3.90	71mm	36%

Bulk Density

Grain Size	HG-AB025	HG-AB026
P12	1.72-1.82	1.81-1.91
P16	1.71-1.81	1.80-1.90
P20	1.70-1.80	1.78-1.88
P24	1.68-1.78	1.77-1.87
P30	1.67-1.77	1.76-1.86
P36	1.66-1.76	1.74-1.84
P40	1.65-1.75	1.73-1.83
P50	1.63-1.73	1.71-1.81
P60	1.61-1.71	1.69-1.79
P80	1.58-1.68	1.66-1.76
P100	1.56-1.66	1.64-1.74
P120	1.53-1.63	1.61-1.71
P150	1.50-1.60	1.58-1.68
P180	1.48-1.58	1.56-1.66
P220	1.46-1.56	1.54-1.64

Available Grit Sizes

Our white fused alumina P-grit abrasives are available in a comprehensive range of standard grit sizes, from P12 to P2500.
We also offer the flexibility to customize grit sizes to meet specific enterprise standards and unique customer requirements.

As a professional supplier, we not only provide high-quality abrasive products but also offer expert technical services to assist our clients in optimizing their abrasive processes and achieving superior results. Our team is dedicated to helping you select the most suitable WFA P-grit abrasive for your specific application, ensuring maximum efficiency and cost-effectiveness. Partner with us for reliable abrasive solutions and professional technical support tailored to your industrial needs.