Zirconia Fused Alumina (ZFA) is a high-grade, high-toughness abrasive and refractory material produced by melting and quenching in an electric arc furnace at temperatures exceeding 2000°C. It is primarily composed of aluminum oxide (Al2O3) and zirconium oxide (ZrO2), forming a dense, dendritic microcrystalline structure of α-Al2O3 and Al2O3-ZrO2 eutectics. It combines the high hardness of corundum with the excellent toughness of zirconium oxide.
Key Features:
High toughness: Approximately 2-3 times that of ordinary fused white corundum, extending grinding wheel life by 30-50%.
Excellent self-sharpening: Microcrystalline fractures continuously reveal new edges, while grinding at low heat levels prevents burns to the workpiece.
High-temperature and corrosion resistance: Excellent resistance to molten steel, molten glass, and acid-base slag.
Excellent shape retention: Suitable for heavy-load, high-feed, and high-speed grinding.
Product Description
AZ40-F grade products are specifically engineeredfor bonded abrasives.From rough, organic-bondedabrasives to precise, vitrified-bonded abrasives, JYSoffers a wide range of products that can be customi-ze to suit various needs, AZ40-F Grade products vowtoincrease material removal rates and to extend usa-bility without sacrificing beautiful fnishes.
AZ40-P grade products are specifically engineeredfor coated abrasives. While traditional abrasives dullor break at the bonding point, JYS's AZ40-P Gradeabrasives have unique fracture properties that offermicroscopic precision in performance and efficientability in high speed cutting action. These grains donot only improve the overall cutting experience, butthey also extend the usability of your sandpapers.belts, or flap discs.
Applications
AZ40 F-grade - Bonded Abrasives
Cutting stainless steel
Cutting high alloys steel types
high pressure rough grinding and snagging snagging of alloyed steel castings
Large diameter cut off wheels Steel Conditioning
ID &OD Grinding
Centerless Grinding
Disc Grinding Segments
Track Grinding
AZ40 P-grade - Coated Abrasives
Sanding of stainless steel types
(e.g.Cr-Ni steel)
Machining of high alloyed steel types
under heavy duty conditions
Sanding of parquet floors
Belts
Flap disc
Vulcanized fiber discs
Product Parameters
| Physical Characteristics |
| Item |
Crystal color |
Basic mineral |
Absolute density |
Knoop hardness |
Melting point |
| ZA40 |
Gray Green |
α- Al2O3, m.t- ZrO2 |
4.65g/cm3 |
1620kg/mm2 |
1880ºC |
| Chemical Composition |
| Type |
Chemical Composition(%,by weight) |
| Al2O3 |
ZrO2 |
SiO2 |
Fe2O3 |
Na2O |
| ZA40 |
59% |
40% |
0.10% |
0.20 |
0.08% |
Note: Special requirement on chemical composition can be satisfied through discussion.
AZ40-F grade Bulk Density(g/cm³)
| F12 |
F14 |
F16 |
F20 |
| 2.22-2.36 |
2.20-2.34 |
2.15-2.29 |
2.12-2.26 |
| F24 |
F30 |
F36 |
F40 |
| 2.10-2.24 |
2.05-2.19 |
2.00-2.14 |
1.96-2.10 |
| F60 |
F80 |
F100 |
F120 |
| 1.91-2.05 |
1.89-2.03 |
1.88-2.02 |
1.88-2.02 |
| F150 |
F180 |
F200 |
|
| 1.88-2.02 |
1.88-2.02 |
1.88-2.02 |
|
AZ40-P grade Bulk Density(g/cm³)
| P20 |
P24 |
P30 |
P36 |
| 0-2.25 |
0-2.20 |
0-2.20 |
0-2.20 |
| P40 |
P50 |
P60 |
P80 |
| 0-2.10 |
0-2.10 |
0-2.00 |
0-2.00 |
| P100 |
P120 |
P150 |
P180 |
| 0-1.93 |
0-1.93 |
0-1.93 |
0-1.93 |
| P220 |
|
|
|
| 0-1.93 |
Note: Special requirement on bulk density can be satisfied through discussion.
Our Advantages
Company Profile
Certifications
FAQ
Q1: Can you offer free samples?
A: Yes, free samples can be offered in certain quantity, but big samples and special products with charge.
Q2: Can I have a sample order for your products?
A: Yes, we welcome sample orders to test and check the quality.
Q3: What is your delivery time?
A: Sample order: Usually within 7 working days
Mass order: Within 25 days after 30% deposit received for conventional products. Negotiation for special products.
Q4: What is your payment terms?
A: T/T, L/C and so on.
Q5: Do you offer customized products according to customer's requirements?
A: Yes, OEM, ODM services and our own brand (KUMTHAI) are provided according to customers' requirements.
Q6: Are all your products on the website?
A: Not all the products on the websites. For some related products or the sizes that are not included on the website, please make an inquiry separately to our emails or any social media.
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