Pink Fused Alumina

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Pink Fused Alumina is crafted using alumina powder as the primary raw material, with an appropriate addition of chromium oxide, fused at high temperatures. Its hardness is comparable to White Fused Alumina, yet it possesses greater toughness. As the content of chromium oxide increases, the grains of the abrasive take on a progressively deeper color, enhancing its toughness accordingly.

GREAT offers a range of products including Low-Chromium Alumina, Medium-Chromium Alumina, and High-Chromium Alumina to tailor to your unique requirements.

Pink Fused Alumina (Low Chromium)
Pink Fused Alumina (Medium Chromium)
Ruby Fused Alumina (High Chromium)

Why Choose Pink Fused Alumina from GREAT Abrasive?

Opt for GREAT Abrasive for its unmatched expertise, guaranteed quality, flexible ordering, commitment to customer satisfaction, and efficient processes. Our dedication to excellence and integrity in service ensures that we not only meet your expectations but exceed them, making us the go-to provider for Pink Fused Alumina.

Unparalleled Expertise

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Get superior performance without premium price. Our PFA boosts your efficiency and profits, proving our dedication to affordable quality.

Beyond Sales Support

Enjoy peace of mind with every order through our post-purchase integrity-first approach, ensuring quality and logistic assurance.

Flexibility for All Orders

No-minimum order policy accommodates any project size, offering unparalleled flexibility and convenience.

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FAQ About Pink Fused Alumina

It is a type of Aluminum Oxide abrasive known for its pink color, derived from the addition of chromium oxide during the production process, enhancing its hardness and durability.

It possesses high hardness, good toughness, excellent durability, and thermal stability, making it suitable for a wide range of abrasive applications.

The key difference lies in its chromium oxide content, which gives Pink Fused Alumina its distinct pink color and slightly higher toughness and durability compared to White and Brown Fused Alumina.

Yes, its precise grain size and high toughness make it an excellent choice for precision grinding operations, especially on high-speed steel and tool steels.

Smaller grain sizes are used for fine grinding and surface finishing, while larger grains are suitable for cutting and heavy-duty grinding, affecting the material's removal rate and surface finish.

Quality is ensured through rigorous processing controls, starting from the selection of raw materials, precise control of the fusion process, and stringent testing of the finished product for purity, grain size, and performance characteristics.

Ruby Fused Alumina stands out due to its high chromium oxide content, which imparts a ruby color and enhances its toughness and durability for abrasive applications.

Consider the material's hardness, toughness, grain size, and the specific requirements of the application, such as the type of material being processed and the desired finish.

It is produced by melting high purity alumina and chromium oxide in an electric arc furnace at high temperatures, followed by cooling, crushing, and sizing to the desired grain sizes.

Yes, its superior hardness and toughness make it ideal for creating precision grinding wheels, offering excellent performance in precision machining tasks.

Its excellent thermal stability makes Ruby Fused Alumina suitable for high-temperature applications, maintaining its abrasive properties under extreme conditions.

Like other fused alumina, Ruby Fused Alumina is considered environmentally friendly as it is inert and does not emit harmful substances during use.

It is commonly used in abrasive applications requiring high toughness and durability, such as grinding and cutting tools, sandblasting, and refractory materials.

The chromium oxide increases the toughness and thermal stability of the alumina, making it more durable and efficient in abrasive applications.

The benefits include superior toughness, durability, and thermal stability, making it ideal for high-performance abrasive applications that require materials capable of withstanding harsh conditions.

Ruby Fused Alumina is produced by fusing high purity alumina with chromium oxide in an electric arc furnace, resulting in its characteristic ruby color and enhanced physical properties.

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Pink Fused Alumina Buyer’s Guide

Impressed current Pink Fused Alumina are pivotal in sectors like abrasives and blasting, coming in varied sizes and purities to cater to diverse requirements and specifications.

Whether you’re contemplating importing impressed current Pink Fused Alumina for your projects or distributing them locally, our comprehensive buyer’s guide furnishes you with essential insights. This guide proves invaluable for both novices and experienced purchasers, empowering you to make informed choices when it comes to procuring Pink Fused Alumina.

Table of contents

Chapter 1

What is Pink Fused Alumina?

Pink fused alumina, added with chromium oxide during its production, showcases a pink to ruby hue based on chromium content. This strategic incorporation of Cr2O3 into the Al2O3 crystal matrix enhances the material’s toughness, providing a notable improvement over the inherent brittleness commonly associated with white fused alumina. When benchmarked against brown fused alumina, pink fused alumina distinguishes itself by exhibiting superior hardness, aggressiveness, and a more pronounced cutting efficacy. This unique blend of properties renders it an optimal choice for applications demanding precise and aggressive material removal.

Chapter 2

Property of Pink Fused Alumina
  • Enhanced Durability:

Pink Fused Alumina is significantly tougher than standard abrasives. The presence of chromium oxide within the alumina matrix increases the material’s hardness and durability, making it more resistant to wear and tear.

  • Superior Corrosion Resistance:

Chromium oxide imparts excellent corrosion resistance to Pink Fused Alumina, especially against acidic and basic slags. This makes it highly suitable for use in environments where chemical attack is a concern.


  • Higher Thermal Stability:

Pink Fused Alumina can withstand very high temperatures without losing its structural integrity. This thermal stability is crucial in applications like refractory linings for furnaces where extreme temperatures are common.

  • Better Thermal Shock Resistance:

It exhibits greater resistance to thermal shock compared to other abrasives. This is essential for materials that are subjected to rapid temperature changes, which can cause other materials to fracture or spall.

  • Increased Lifespan:

The combination of corrosion resistance, thermal stability, and durability results in a longer lifespan for Pink Fused Alumina compared to conventional abrasives, which can reduce downtime and the need for frequent replacements.

  • Abrasion Resistance:

The robust structure of Pink Fused Alumina grants it superior abrasion resistance, which is beneficial in grinding, cutting, and blasting operations.

  • Cost-Effectiveness:

While Pink Fused Alumina may have a higher initial cost, its longevity and efficiency can lead to lower overall costs in the long term due to reduced maintenance and replacement needs.

  • Specialized Applications:

The unique properties of Pink Fused Alumina make it ideal for specialized applications that common abrasives cannot handle, such as the processing of aerospace materials, precision grinding, and in components subjected to high wear and chemical exposure.


In summary, Pink Fused Alumina stands out in applications that require abrasives with high performance and endurance against mechanical wear, chemical corrosion, and thermal stress.

Chapter 3

Specification of Pink Fused Alumina
Chemical Analysis
Spec Grit Low Chromium Medium Chromium High Chromium
Al2O3 F12-F80 98.5% Min 98.2% Min 97.4% Min
F90-F150 97.0% Min
F180-F220 98.0% Min 97.8% Min 96.5% Min
Cr2O3 F12-F80 0.2-0.4% 0.4-1.0% 1.0-2.0%
Na2O F12-F80 0.50% Max 0.55% Max
F90-F150 0.55% Max 0.60% Max
F180-F220 0.60% Max 0.70% Max
Physical Property
Color Pink to pinkish purple
Crystal Structure α-Al2O3
Melting Point 2050℃
Microhardness 2200-2300 kg/mm2
True Density 3.9 g/cm3
Magnetic 0.015% Max

Chapter 4

How is Pink Fused Alumina Produced?

Pink Fused Alumina is produced through a specific fusion process in an electric arc furnace. Here’s an overview of the production steps:


Raw Material Selection:

The primary raw material for Pink Fused Alumina is aluminum oxide (Al2O3). A precise amount of chromium oxide (Cr2O3) is added to the aluminum oxide. The presence of chromium oxide differentiates Pink Fused Alumina from other types of fused alumina, giving it its characteristic pink color.


The aluminum oxide and chromium oxide mixture is melted in an electric arc furnace at temperatures exceeding 2000°C. This high-temperature process ensures the complete fusion of the materials.


Cooling and Solidification:

After achieving the desired melt composition and homogeneity, the molten material is cooled and allowed to solidify. This cooling process is controlled to promote the formation of the desired crystal structures.

Crushing and Sizing:

The solidified material is then crushed into smaller pieces and processed into grains of specific sizes, suitable for various abrasive applications. This step involves a series of crushing, milling, and screening operations to achieve the desired grain sizes.

Quality Control:

Stringent quality control measures are in place throughout the production process to ensure the final product meets specific standards for chemical composition, grain size, and purity. Samples are tested for physical and chemical properties to ensure they meet industry standards and application requirements.

The addition of chromium oxide not only imparts the pink color but also enhances the toughness and durability of the alumina, making Pink Fused Alumina suitable for precision grinding applications where a balance between cutting efficiency and abrasive life is required.

Chapter 5

What is Pink Fused Alumina Used For?

Vitrified Abrasives

Pink fused alumina is primarily utilized in the production of vitrified abrasives, playing a crucial role in grinding and sharpening tasks, particularly for hardened steels and alloys. Its applications extend to tool grinding, as well as the precise sharpening of saws and knives. Additionally, pink fused alumina is integral in precision, profile, and flute grinding operations, along with its use in mounted points.

Surface Preparation

It is used for surface preparation processes, such as etching, deburring, and blasting, to prepare metal surfaces before painting or coating.

Precision Grinding

Due to its fine grit sizes, it’s ideal for precision grinding operations, especially in the tool and die making industries, where high surface finish quality is necessary.


Its thermal properties make it a component in refractory bricks and castables, contributing to the thermal resistance of these materials in high-temperature environments.

Lapping and Polishing

Its fine grains are utilized in lapping compounds and for polishing applications, especially where a high finish is required without compromising material integrity.

Anti-Skid Surfaces

The abrasive nature of Pink Fused Alumina makes it suitable for use in anti-skid surfaces, including runway surfaces and highway pavements, to enhance traction.

Chapter 6

Pink Fused Alumina and Ruby Fused Alumina are both variations of Aluminum Oxide (Alumina) used in abrasive materials, but they differ in their composition, properties, and applications due to the addition of different amounts of chromium oxide (Cr2O3), which gives them their distinctive colors and enhances their performance characteristics.

Feature Pink Fused Alumina Ruby Fused Alumina
Composition Contains a lower percentage of chromium oxide, giving it a lighter pink color. Higher chromium oxide content, resulting in a deeper ruby color.
Properties Good cutting ability with a balance between hardness and toughness. Higher toughness and durability, retains excellent cutting performance.
Applications Ideal for precision grinding, surface finishing, vitrified and coated abrasives, and blasting media. Suited for tool and die steels, high-alloy stainless steels. Suited for demanding abrasive applications, heavy-duty grinding wheels, precision grinding of high-speed steel, alloy steels, and applications requiring high surface finish.

The choice between Pink and Ruby Fused Alumina depends on the specific requirements of the application, such as the material being processed, the desired finish, and the balance between cutting efficiency and abrasive life.

Pink Fused Alumina vs. Ruby Fused Alumina

Chapter 7

Key Considerations When Buying Pink Fused Alumina

When purchasing Pink Fused Alumina, several key factors should be considered to ensure that the material meets your specific needs and delivers optimal performance in your applications. Here are the main considerations:

Purity and Composition:

Verify the purity of the Pink Fused Alumina and the exact composition, particularly the percentage of chromium oxide (Cr2O3), which affects its toughness and cutting efficiency. Ensuring the material meets your specifications is crucial for performance.

Grain Size and Distribution:

The grain size and distribution are critical for the abrasive’s performance in different applications. Choose the appropriate grain size based on whether you need it for rough grinding, precision finishing, or another specific application.

Toughness and Hardness:

These properties determine how the abrasive will perform under stress and its resistance to fracture. Pink Fused Alumina is known for its balance between toughness and hardness, making it suitable for a variety of abrasive applications.

Thermal Stability:

Consider the thermal stability of Pink Fused Alumina, especially if it will be used in high-temperature applications. Its ability to maintain structural integrity at high temperatures is beneficial for certain processes.

Bulk Density:

The bulk density can influence the material’s cutting action and its suitability for different applications. Higher density materials may offer more aggressive cutting action.

Quality Assurance:

Look for suppliers who follow strict quality control processes to ensure consistent quality in their Pink Fused Alumina. Ask for quality certificates or test reports that verify the material’s specifications.

Supplier Reputation and Reliability:

Choose a supplier with a good reputation for reliability and quality. Their ability to provide consistent, high-quality Pink Fused Alumina and technical support is essential for long-term satisfaction.


While not the only factor, the cost of Pink Fused Alumina should be considered in the context of its quality and the value it brings to your applications. Sometimes, paying a bit more for higher quality material can save money in the long run due to improved performance and longer lifespan.

Regulatory Compliance:

Ensure that the Pink Fused Alumina meets any applicable regulatory requirements or industry standards for safety and environmental impact.

Availability and Lead Time:

Consider the supplier’s ability to meet your quantity requirements and their lead times for delivery. Ensuring they can provide what you need when you need it is critical for maintaining uninterrupted operations.

By carefully evaluating these considerations, you can make an informed decision when purchasing Pink Fused Alumina, ensuring that it meets your application requirements and delivers the desired performance.

Chapter 8

Pink Fused Alumina Packaging and Transportation Tips

Purchasing Pink Fused Alumina necessitates careful packaging and transportation to maintain its quality. Here are streamlined tips for effectively handling Pink Fused Alumina:

Packaging Tips
  • Moisture Barrier: Choose materials with excellent moisture resistance. Moisture-proof films or sealed bags are essential.
  • Durability: Select strong, durable packaging to endure transportation pressures.
  • Size Appropriateness: Ensure packaging is correctly sized for the volume, optimizing protection and efficiency.
  • Pallet Corner Smoothing: Smooth pallet corners to prevent packaging damage.
  • Strapping Protection: Use protective boards under straps to avoid bag damage.
Transportation Tips
  • Container Organization: Arrange packages neatly in containers to prevent damage.
  • Transit Protection: Secure goods well for factory-to-port transit, protecting against road hazards.
  • Mixed Loading Care: When combining pallets and bulk bags, use cushioning to reduce movement and prevent damage.
  • Weather Prep: In humid or rainy weather, increase packaging’s moisture protection and consider container desiccants.

Efficient packaging and transportation are critical for preserving Pink Fused Alumina quality. By focusing on moisture prevention, packaging integrity, and careful transit handling, you can ensure your Pink Fused Alumina arrives in excellent condition. Partnering with a supplier knowledgeable in these areas is key to minimizing transit risks and maintaining product standards.

Chapter 9

In Summary

Selecting the perfect Pink Fused Alumina (PFA) is essential for superior performance in detailed grinding and finishing operations, suitable for both precise manufacturing and heavy-duty tasks. The variety available can be daunting for those new to abrasives.

Discover Great Abrasive, your reliable partner and expert in Pink Fused Alumina supply. Dedicated to unmatched quality, we provide premium Pink Fused Alumina products tailored to your grinding and finishing needs. Leveraging thirty years of industry experience, Great Abrasive simplifies the selection process with tailored solutions addressing your operational needs.

Partner with Great Abrasive for top-grade Pink Fused Alumina, ensuring you navigate abrasive technology successfully and achieve optimal surface treatment outcomes.

Transform Your Precision Grinding with Our Pink Fused Alumina!

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