high Quality 85% Al2O3 Black Fused Alumina

Black Aluminum Oxide/black Fused Alumina/black Corundum
Black Fused Alumina, is a type of fused aluminum oxide, named by itsblackcolor. It's made of bauxite and Fe2O3 in tilting electric furnaces. It has lower content of Aluminum Oxide(Al2O3) and certain content of Fe2O3(about 10%).
It's mainly used for free abrasives and polishing on metal, stainless steel, wood, bamboo etc.And also abrasives grains for production of resin bonded abrasives tools and coated abrasives products. With its hardness and strength, it is also an good sandblasting media.
Project
Indicators
Color
Black
Crystal shape
Trigonal System
Melting point (ºC)
2050
The highest use temperature (ºC)
1850
True density (g/cm3)
≥3.50
Linear expansion coefficient (0-1600 ºC)
7-9
Grade
The main chemical composition
Al2O3
Fe2O3
SiO2
Grade One
85
9
≤6
Grade Two
80
10
≤10Application1. Extremely hard, sharp, and durable abrasive2. Angular shape and fairly high bulk density will produce amatte surface finish3. Abrasive is generally reusable many times because of its hardness and durability4. Anchor pattern creation prior to coating or bonding5.Rust, scale, or other tough contaminant removal6. Application must tolerate some metal removal7. Used for grinding and lapping as well as abrasive blasting
Available sizes
JIS:#8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 #240 #280 #320 #360 #400 #500 #600 #800 #1000 #1200 #1500
FEPA:F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000
Frequently Asked Questions:
1. Payment:T/T, Western Union, 30% deposits; 70% balance before delivering, Or any other Payments if possible.
2. Delivery Time:7-15 days
3. MOQ:1 ton or as customer request.
4. Package Information:
Packing with Kraft paper bag with liner;
Packing with Bowie with liner;
Palletized when loading in container;
As customer request.
5. The nearest port:Tianjin and Qingdao port
6. The time for the cargo to the nearest port:1-2 days.
Packing& Shipping