High Temperature Calcined Alumina for Ceramics

US$0.50 - 1,500.00 1 kg (MOQ)
Port:
Fuzhou, China
Transport Package:
Standard Export Bag/Bulk Bag/Pallet
Payment Terms:
L/C, T/T, Western Union
Rating: 3.0/5

Last Login Date:

Jul 04, 2025

Business Type:

Manufacturer/Factory, Trading Company

Main Products:

Cut off Wheel, Cutting Disc, Grinding Disc, Cutting Wheel, Grinding Wheel, Flap Disc, White Fused Alumina, Coating Abrasive

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Product Description

Company Info

Basic Info.

Model NO.
Calcined Alumina
Natural Abrasive Type
White Corundum
Artificial Abrasive Type
Corundum Abrasives
Application
Abrasive Grains and Refractory Materials
Function
Polishing, Grinding and Blasting
Source
Natural Abrasives
Particle Size
Hardness
9 Mohs
Bulk Density
1.75-1.95g/cm3
Real Density
3.95g/cm3
Melting Point
2250 Celsius
Maximum Service Temperature
1900 Celsius
Trademark
YIZE, OEM
Specification
WA
Origin
China
HS Code
2818109000

Product Description

White fused alumina was made from the high quality  alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal  phase alpha-Al2O3. The white alumina produced in  titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.

Main Physical Properties:

MOHS HARDNESS9.0
BULK DENSITY1.75-1.95g/cm3
REAL DENSITY3.95G/CM3
MELTING POINT2250ºC
MAXIMUM SERVICE TEMPERATURE1900ºC

The producton process:
Alumina powder -- Melting in the electric arc -- Cooling -- Crushing -- Sieving -- Pickling or Rinsing -- Packing --Testing -- Warehousing
Application:
1. Bonded abrasives and Coated abrasives
2. Floor / Wall Laminates
3. Thermal Spraying (Plasma Spraying)
4. Lapping & Micro - blasting applications
5. Surface preparation and finishing
6. Super Refractories, Ceramics and Tiles
7. Brake linings

Used for refractory, castable:

Properties
 
0-1mm 1-3mm 3-5mm
0-100 0-200 0-320
Guarantee Value
Typical Value
Guarantee Value
Typical Value
Chemical
Composition
 
Al2O3
≥99
99.5
≥98.5
99.0
SiO2
≤0.4
0.06
≤0.30
0.08
Fe2O3
≤0.2
0.04
≤0.20
0.10
Na2O
≤0.4
0.30
≤0.40
0.35

Used for abrasives, blasting, grinding:

Properties
 
Grains
8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220#
Guarantee Value
Typical Value
Chemical
Composition
 
Al2O3
≥99
99.50
SiO2
≤0.2
0.04
Fe2O3
≤0.2
0.04
Na2O
≤0.3
0.23

 

Used for abrasives, lapping, polishing:

Properties
 
Micropowder
W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5
F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000
240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500#  2000# 2500# 3000# 4000# 6000# 8000#
Guarantee Value
Typical Value
Chemical
Composition
 
Al2O3
≥99
99.20
SiO2
≤0.4
0.08
Fe2O3
≤0.2
0.06
Na2O
≤0.4
0.35

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FAQ
1. Why choose us?
With 10+ years high-end abrasive production experience, we drafted and made China National Standard of White fused alumina (GB/T 2479-2022) , we know abrasive materials very well, we can customize very competitive products for you.

2. How can you guarantee quality?
Always a pre-production sample before mass production;
Always final inspection before shipment;

3. Are you a trading company or manufacturer?
We are the manufacturer(cutting and grinding disc) founded in 2005, and started producing abrasive materials in 2013.

4. Do you have any certificate?
Yes, we have MPA, ISO, SGS certificates.

5. Can you provide samples?
Yes, but the shipping cost should be paid by customers.



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