Pink Fused Alumina

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Pink Fused Alumina Specification

Hardness (%)
Mohs hardness 9+

Chemical Composition
Al2O3: 98.0-99.0%, Cr2O3: 0.5-0.8%

Form
Powder, block, grit

Application
Grinding wheels, polishing, sandblasting, lapping, cutting tools, refractories

Melting Point
>= 2050C

Usage & Applications
Precision grinding, tool sharpening, surface preparation, refractory lining

Surface Finish
High-quality finish

Purity(%)
98-99%

Density
3.9 Gram per cubic centimeter(g/cm3)

Water Absorption
Negligible

Product Type
Abrasive material, refractory raw material

Types of Refractories
Monolithic refractories, shaped refractories

Shape
Granules, grains, powder

Porosity
Low

Dimensional Stability
Excellent

Strength
High mechanical strength

Specific Gravity
3.9 g/cm

Thermal Conductivity
Low

Color
Pink

About Pink Fused Alumina

Process of Production and Character

Pink Fused Alumina is produced by doping Chromia into Alumina, which gives the material pink color. The incorporation of the Cr₂O₃into the AI2O3 crystal lattice produces a slight increase in toughness and a reduced friability compared with white Fused Alumina.
Compared to Brown Regular Aluminum Oxide the Pink material is harder, more aggressive and has better cutting ability. The grain shape of Pink Aluminum Oxide is sharp and angular.

Application :

The FEPA F grades are especially suitable for the manufacturing vitrified bonded abrasives for working hardened steels and alloys with tensile strengths of over 50 Kg/mm2. It is also used in tool grinding, knife - sharpening applications, precision grinding, profile grinding, flute grinding, tooth grinding, dry grinding of blade segments and mounted wheels. The FEPA P grades are a preferred material for working non-ferrous metals and the alloys (copper, aluminium, zinc, brass, Bronze), but also used for softer materials, such as wood, synthetics and pains.

Technical Specification :

Items / Chemical Composition		Unit	Medium Chrome	Low Chrome	High Chrome
Size F12-F80	AI₂O₃	%	98.2 min	98.5 min	97.4 min
	Cr₂O₃	%	0.45-1.00	0.20-0.45	1.00-2.00
	Na₂O	%	0.55 max	0.50 max	0.55 max
F90-F150	AI₂O₃	%	98.20 min	98.50 min	97.00 min
	Cr₂O₃	%	0.45-1.00	0.20-0.45	1.00-2.00
	Na₂O	%	0.60 max	0.50 max	0.60 max
F180-F220	AI₂O₃	%	97.80 min	98.00 min	96.50 min
	Cr₂O₃	%	0.45-1.00	0.20-0.45	1.00-2.00
	Na₂O	%	0.70 max	0.60 max	0.70 max
Physical Property	Basic Minerals		-AI₂O₃	-AI₂O₃	-AI₂O₃
	Crystal Size	m	600~2000	600~2000	600~2000
	True Density	g/cm³	> 3.90	> 3.90	> 3.90
	Bulk Density	g/cm³	1.40~1.91	1.40~1.91	1.40~1.91
	Knoop Hardness	g/cm³	2200~2300	2200~2300	2200~2300

Exceptional Toughness and Purity

Engineered for durability, Pink Fused Alumina stands out for its high mechanical strength and uniform microstructure. The addition of Cr2O3 contributes to its superior toughness and extends its utility in challenging industrial environments. Its purity (98-99% Al2O3) makes it suitable for precision and high-performance applications.

Customized for Versatile Applications

Available in various grain sizes and shapes, including powder, grit, and blocks, Pink Fused Alumina can be tailored to meet specific application needs. From grinding and polishing to refractory lining and surface preparation, users benefit from its flexibility and reliable high-quality finish.

Safe, Environmentally Friendly Packaging

The product is non-toxic and environmentally safe, ensuring secure handling. It is offered in multiple packaging options25 kg or 50 kg bags, jumbo bags, or custom solutionsmaking transportation and storage both practical and efficient.

FAQs of Pink Fused Alumina:

Q: How is Pink Fused Alumina used in grinding wheels and cutting tools?

A: Pink Fused Aluminas high hardness (Mohs 9+) and toughness make it an excellent abrasive for manufacturing grinding wheels and cutting tools. It provides efficient material removal, consistent wear resistance, and a superior finish on a variety of surfaces.

Q: What are the benefits of its high alumina content and low porosity?

A: The elevated Al2O3 purity (9899%) ensures enhanced mechanical strength and chemical resistance, while low porosity equates to reduced water absorption and increased durability, particularly in high-stress or corrosive environments.

Q: When should I choose customizable grain sizes for my application?

A: Customizable grain sizes, from F8 to F220, allow you to select the optimal particle size for specific uses, such as coarse grains for aggressive grinding or fine grains for polishing and lapping, ensuring the best performance for each task.

Q: Where can Pink Fused Alumina be used in refractory applications?

A: It is commonly used in both monolithic and shaped refractories for furnaces, kiln linings, and thermal insulation due to its high thermal stability, excellent dimensional stability, and resistance to chemical attack.

Q: What is the process for packaging and shipment?

A: Pink Fused Alumina is packed in secure, moisture-resistant bags25 kg, 50 kg, or jumbo bags. Custom solutions are available to suit bulk or special requirements, ensuring product integrity during transport and storage.

Q: How does Pink Fused Alumina contribute to environmental safety?

A: With its non-toxic composition and environmentally safe characteristics, handling and disposal pose minimal risk, making it suitable for operations adhering to strict safety and environmental standards.

Q: What advantage does its alpha-crystal structure provide?

A: The alpha ()-alumina crystal structure offers high refractoriness under load and maintains structural integrity at extreme temperatures, resulting in reliable performance in demanding industrial processes.

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