Abrasives Pink Aluminum Oxide Fused Alumina With Low/Medium/High Chromium

 

Chromium-Enhanced Corundum: Premium Pink Aluminium Oxide Abrasives

Chromium corundum is produced by fusing high-purity alumina powder with a controlled amount of chromium oxide under extreme temperatures. This results in a high-performance abrasive material known for its distinct pink hue, exceptional hardness, and superior toughness.

Our chromium fused alumina offers hardness comparable to white aluminium oxide, yet with enhanced durability. Abrasives made from this material exhibit excellent longevity and produce a remarkably smooth finish, making them ideal for precision grinding applications.

Ideal Applications Include:

Precision grinding of measuring instruments, machine tool shafts, and precision screw components

Sample preparation and finishing of delicate instrument parts

Grinding and polishing materials for specialised surfaces

Precision casting sand, high-quality spray coatings, and chemical catalyst carriers

Advanced ceramics, high-grade refractories, and coated abrasives for wood and non-ferrous metals (e.g., copper, brass)

Compared to white corundum, our chromium fused alumina demonstrates greater resistance to fracturing, ensuring a consistent and smoother surface finish.

Rigorous Material Selection
We employ advanced screening and grading technologies. Our skilled technicians meticulously select raw materials to guarantee consistent high quality in every batch.

Stringent Manufacturing Process

Raw material preparation → 2. High-temperature smelting → 3. Controlled cooling → 4. Primary crushing → 5. Ball milling → 6. Barmack crushing and sieving → 7. Graded granular sand → 8. Residual powder processing → 9. Chemical treatment → 10. Hydro-classification → 11. Sedimentation → 12. Fine powder drying → 13. Quality inspection → 14. Storage → 15. Final verification → 16. Dispatch

Outstanding Product Properties

Excellent crystallinity, consistent colour, high packing density, and improved toughness

Uniform particle size distribution, low magnetic content, and rapid processing capability

High purity, exceptional hardness, superior self-sharpening, and corrosion resistance

Comprehensive Size Range

Section Sand: 0-1mm, 1-3mm, 3-5mm, 5-8mm

Granular Sand: 16#, 24#, 30#, 36#, 46#, 60#, 80#

Fine Powder: 100#, 200#, 325#, 400#

Custom sizes available upon request

Versatile Industrial Applications
Our chromium fused alumina is particularly suitable for the coated abrasives industry. It is highly effective for wood grinding and offers superior performance when working with non-ferrous metals. Its robust nature reduces breakage and ensures a consistently smooth finish.

Physical properties                                                         

basic mineral	α-Al2O3
color	pink
crystal size	600-2000μm
specific gravity	≥3.9g/cm3
packing density	1.40-1.91g/cm3
micro hardness	2200-2300g/mm2

Chemical content

Grits	low chromium content			medium chromium content			high chromium content
	Al2O3	Cr2O3	Na2O	Al2O3	Cr2O3	Na2O	Al2O3	Cr2O3	Na2O
F12-F80	≥98.50	0.20-0.45	≤0.50	≥98.20	0.45-1.00	≤0.55	≥97.40	1.00-2.00	≤0.55
F90-F150	≥98.50	0.20-0.45	≤0.55	≥98.20	0.45-1.00	≤0.60	≥97.00	1.00-2.00	≤0.60
F180-F220	≥98.00	0.20-0.45	≤0.60	≥97.80	0.45-1.00	≤0.70	≥96.50	1.00-2.00	≤0.70

 

 

Q:Who are you?
A: ZHENGZHOU FANCHUANG SCIENCE AND TECHNOLOGY CO.,LTD is a manufacturer and trader specialized in the research, development and production of abrasive products. We are located in Zhengzhou city,Henan province,China,with convenient transportation access. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.

Q: Can you accept customization?
A: Yes. If you have special requirements on products or packages, we can do customization
for you.

Q: Are samples available for quality test?
A: Yes,free samples can be prepared for quality test,but usually customers bear the freight charges.

Q:How long can I get a sample or some samples?

A:Normally 1-3 working days.

Q: How can you guarantee quality?
A: We have a strict inpection process to ensure product quality.

Q: What are your terms of payment?
A: T/T,L/C,paypal,western union and other payment methods can be negotiated.

Q: Where is your nearest loading port?
A: Qingdao port.Other ports can also be designated according to your requirement.

 

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