Zirconia Fused Alumina

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Zirconia Fused Alumina

Zirconium Fused Alumina is a eutectic structure abrasive of Al2O3 and ZrO2. It is a very durable abrasive material obtained by using high-purity alumina and desiliconized zirconia as the main raw materials. It is melted at high temperature in an electric arc furnace and then rapidly cooled and crystallized. The material has a very fine and uniform microcrystalline structure, which provides high toughness while also ensuring good self-sharpening properties.

GREAT can provide two product series: ZA25 and ZA40, tailored to your unique needs.

Our commitment is to deliver not just products, but tailored solutions that propel your business forward. Choose us for abrasives that are designed with your unique needs in mind, ensuring your projects are powered by the best in the industry. Let’s shape the future of abrasives together, elevating your standards to new heights, NOW!

Zirconia Fused Alumina 25%
Zirconia Fused Alumina 40%


Typical Chemical Analysis

Item Size Al2O3 ZrO2 SiO2 Fe2O3 TiO2
ZA25 F16 72.11% 24.83% 0.36% 0.29% 0.32%
ZA40 F16 57.23% 39.09% 0.51% 0.42% 0.43%

Physical Property

Item Color Crystal Structure Crystal Size Melting Point Microhardness True Density
ZA25 Grey Eutectic α-Al2O3 15-20 um 1950℃ 1950 kg/mm² 4.3 g/cm³
ZA40 Grey Eutectic α-Al2O3 10-15 um 1900℃ 1650 kg/mm² 4.6 g/cm³

Product Application

Bonded Abrasives
Coated Abrasives

25% Zirconia Fused Alumina vs. 40% Zirconia Fused Alumina

Zirconia Alumina is a composite abrasive synthesized from aluminum oxide and zirconium oxide in specific proportions. It harnesses the characteristics of both materials, commonly used in high-performance grinding operations. Here are the main differences between the two:

Item ZA25 ZA40
Zirconium Oxide Content Contains a lower proportion of zirconium oxide (around 25%). Contains a higher proportion of zirconium oxide (around 40%).
Hardness While still hard, it may be slightly softer than ZA40 due to its lower zirconium oxide content. Similar in hardness to ZA25, but the higher zirconium oxide content may provide better wear resistance.
Toughness Good toughness, but not as high as ZA40. The higher content of zirconium oxide offers greater toughness, making it more stable under the pressures of grinding.
Thermal Stability Good thermal stability, but not as high as abrasives with a higher zirconium oxide content. The excellent thermal stability of zirconium oxide makes ZA40 perform better in high-temperature applications.
Application Suitable for general metal grinding, especially when a higher cutting rate is required rather than extreme abrasiveness. Particularly suitable for demanding grinding tasks, such as processing aerospace components, or where extreme wear resistance and thermal stability are required.

The choice between ZA25 and ZA40 largely depends on the specific requirements of the application. If higher wear resistance and thermal stability are needed, ZA40 would be the better choice. 

Conversely, if cost is a factor and the grinding intensity and temperature requirements of the application are not exceedingly high, ZA25 might be more appropriate. The balance between cost and performance should also be considered when making a selection.

Production Volume and Regional Distribution of ZA in China

The main production capacity of Zirconia Fused Alumina in China is concentrated in Hubei, Henan and Fujian provinces.

Price Trends of Zirconia Fused Alumina in China from 2018 to 2023

Curious about the market dynamics in the abrasive industry? Dive into the six-year journey of China’s Pink Fused Alumina prices. It is crucial for your strategic procurement and financial planning.

2018-2019: A Model of Stability

During this period, the ZA market was a picture of equilibrium, reflecting a balance between supply and demand.

2020-Mid 2021: The Pandemic Effect

COVID-19's upheaval was felt across industries. Factory shutdowns and logistics interruptions led to a noticeable price drop in ZA, mirroring the global demand dip.

2nd half of 2021: The Rebound and Rise

Demand steadily picked up as markets warmed up. In China, a significant surge in coal and raw material costs pushed production expenses sky-high. WFA prices peaked in October.

2022: Stabilization Emerges

Post-peak, prices declined and then plateaued.

2023: Economic Headwinds

A global economic slowdown curtailed demand, leading to a continued decrease in ZA prices.


Be Careful When Choosing A New Supplier

The DISAPPOINTMENT of low quality lasts much longer than the Joy of LOW PRICE!

A Comprehensive Strategy Guide

How to Minimize RISKS When Procuring Abrasives from China?

When sourcing abrasive materials from China, mitigating risks is paramount to ensuring a seamless supply chain. Here are key strategies to achieve that:

Choosing Certified Manufacturers

Opt for manufacturers certified with the three-system certification, ensuring they have a comprehensive quality management system.

Diversify Suppliers

Don't rely on a single supplier. Having alternatives can provide a backup in case of unforeseen issues. This also gives leverage in negotiations and price stability.

Choosing Appropriate Payment Methods

Select manufacturers with suitable payment terms, which not only bind the supplier but also give more security to the buyer.

Understand Regulatory Landscapes

Stay informed about the environmental regulations in China that could impact supply. Partner with suppliers who are proactive in adhering to regulatory changes.

Comprehensive Evaluation

Filter 3-5 reputable-looking manufacturers. Deeply communicate to understand their company and product details, ensuring a precise match for your needs. Send technical specifications, obtain detailed quotations and delivery times to assess the credibility of suppliers.

Sample Testing and Factory Audits

Perform small and large sample tests to ensure the supplier’s credibility and capabilities before bulk orders. If possible, conduct on-site factory audits to gain in-depth insight into their quality control and management levels.

Trial Orders and Quality Verification

Place small trial orders, use them in the same batch, and test product quality. Evaluate the consistency of products through 2-3 batches of trial orders.

Professional Third-Party Inspection

Consider commissioning third-party professional organizations for inspections, providing an extra layer of quality assurance.

A Comprehensive Strategy Guide

How to Ask Chinese Abrasive Suppliers for Safe and Attractive Packaging?

Are you grappling with packaging woes like mismatched sizes, crooked labels, and unappealing, damaged bags? It’s time to flip the script and ensure your products arrive in style and intact, from production to usage.

Specify the Packaging Type

Define the packaging form,your suppliers need your expert guidance to nail the packaging type that suits your needs.

Specify Durable Materials

Request packaging materials that are strong and durable. Emphasize the need for moisture-resistant and tear-proof materials to protect the powder from environmental factors.

Clear and Uniform Labelling

Insist on clear and durable labeling. It should be uniformly placed on each package.

Suggest Ideal Sizes

Provide your approved packaging dimensions, drawing from your rich experience, to avoid the pitfalls of oversized or undersized packages.

Stacking and Palletizing

Provide guidelines on how the packages should be stacked and palletized. Request that pallets be wrapped in shrink wrap or strapped to ensure stability during shipping.

Compliance with International Standards

Ensure that the packaging meets international shipping standards and regulations. This is especially important for hazardous or sensitive materials.

Share Examples

A Picture Speaks a Thousand Words: Provide examples or images of successful and not-so-successful packaging. Let suppliers visually grasp what you're aiming for.

Environmentally Friendly Options

If sustainability is a priority, ask for eco-friendly packaging options. This could include biodegradable or recyclable materials.

Communicate these requirements clearly and firmly to your Chinese suppliers. You might also consider drafting a detailed packaging specification document to accompany your order. Remember, effective packaging is not just about protection; it’s about ensuring that your product arrives in the best possible condition, reflecting the high standards of your business.


How to Ensure Safe Transportation of Abrasives from China

In the world of abrasive material procurement, ensuring the safe and intact delivery is as crucial as the quality of the product itself. Let’s explore how Chinese suppliers, can enhance logistic safety to protect your investment.

Container Integrity Checks

Request that suppliers conduct thorough checks on containers or transportation vehicles to ensure they are free from damage and suitable for carrying abrasive materials.

Vibration and Impact Protection

Specify packaging and transportation methods that minimize vibration and impact, which can degrade the quality of abrasives during transit. This might include the use of cushioning materials or stabilizing pallets within containers.

Loading and Unloading Procedures

Define specific loading and unloading procedures to minimize the risk of damage during these processes.

Regular Quality Checks and Updates

Arrange for regular quality checks at various stages of the supply chain. Request regular updates on the shipment's status to monitor its progress and address any issues promptly.

Temperature and Humidity Control

For certain types of abrasives sensitive to temperature and humidity, require controlled transportation environments, such as climate-controlled containers.

Insurance Coverage

Ensure that the supplier has adequate insurance coverage for the transportation of abrasives, covering potential losses or damages during transit.

We'd like to work with you . Send us a message if you have any questions or request a quote. Our experts will give you a reply within 24 hours and help you select the right abrasives you want. 

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