Refractory Grade 3-5mm Brown Aluminium Oxide for Castables

• Customization: Available
• Certificate: ISO9001:2008, MSDS, SGS .CE
• Hardness Moh: Vickers Harness: 2100 Hv Mohs: 9
• Model NO.: J-O3
• Refractory Size: 0-1mm, 1-3mm, 3-5mm, 5-8mm
• Different Process: Fixed Furnace & Dumping Furnace
• Superiority: Have Our Own Factory / Plant
• Al2O3: 95%Min. Sio2 1%Max
• Fe2o3: 0.3%Max. TiO2 2.0-2.8%
• Material: Aluminium Oxide Al2O3
• True Specific: 3.97g/cm3
• Usage: Refractory Castables, Refractory Bricks
• High Light: Castables Brown Fused Alumina Refractory Brown F
• Crystal Form: Trigonal Crystal System
• Product Name: Brown Fused Alumina
• Melting Point: 2050 C Refractoriness 1900c
• Natural Abrasive Type: Natural Corundum
• Artificial Abrasive Type: Corundum Abrasives
• Source: Natural Abrasives
• Particle Size: Abrasive
• Hardness: Superabrasive
• Transport Package: 25kgs Bags +Ton Bag or Pallet
• Specification: F16-F320
• Trademark: Swt
• Origin: Dengfeng. China
• HS Code: 281810000
• Production Capacity: 1000 Tons/Month

Product Description

         Refractory Grade 3-5mm Brown Fused Alumina For Castables
 

Brown aluminum oxide, also called Brown Fused Alumina,  brown corundum, artificial corundum, BFA, etc, is made by melting process and reducing in electric furnace over 2200°C with three raw materials of bauxite, anthracite and iron chip. Then made into different grain size through cooling crystallization, sort, crush, magnetic separation, screen size, blow cleaning etc..

The refractory grade section sand available sizes are  0-1mm, 1-3mm, 3-5mm, 5-8mm etc...

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Main Technical Index
Shape	Sharp,Angular
Color	Brown
Crystalline system	Trigonal
Mohs Hardness	9 Mohs
Vicker Hardness	2200 kg/m^2
True Gravity	3.97g/cm^3
Refracroriness	1,900°C
Melting Point	2,250°C
Chemical Index	AL2O3≥95% Fe2O3≤0.30%
	TiO2≤3.5% SiO2≤1.0%
Specification	F12-F220,P12-P220
	8-5mm, 5-3mm, 3-1mm, 1-0mm etc.
	100mesh ,325 mesh etc.
Product Standard	China GB/T,FEPA etc.

Supply Capacity

BFA grit: F12#-F220# for abrasives and sandblasting: 1000 mt per Month

BFA section sand 0-1mm, 1-3mm, 3-5mm, 200 mesh, 325 mesh for refractory: 1000 mt per Month

 

 

Brown Fused Alumina Applications :
 

Brown Aluminum oxide section sand 0-1mm, 1-3mm, 3-5mm, 5-8mm is applicable for

• Refractories, castables, refractory bricks

Brown aluminum oxide is of high purity, good crystallization, strong fluidity, low coefficient of linear expansion, high temperature resistance and corrosion resistance.

Widely used in the manufacture of advanced refractory materials:

• Castables,
• Refractory bricks,
• Ramming materials,
• Skateboards,
• Steel sliding nozzles,
• Ladle,
• Furnace linings,
• Smelting rare metals,
• Special alloys,
• Ceramics,
• Linings for ironmaking blast furnaces ( Wall and tube),
• Physicochemical utensils,
• Spark plugs,
• Heat-resistant anti-oxidation coating.

In the application process, it has the characteristics of no explosion, no powdering and no cracking.

 

What Is Difference Between Tilting Furnace Melted BFA & Fixing Furnace Melted BFA ?
Ball Milling & Barmac Process?
 

1. Tilting furnace process affects SiO2, SiO2 <1% by Tilting furnace, SiO2 <1.5% is by fixed furnace.

2. Barmac affects the density, the grain shape is  rounder & the density is greater than ball milling

3. The Tilting furnace made BFA has high Al2O3 content

4. The corundum has good toughness & more suitable for abrasive products by dumping furnace process
 

The difference between F-grit & P-grit Abrasive grains:

F-grit is more suitable for bonded abrasive tools.

P-grit is more suitable for coated abrasive tools. It is with a closer tolerance size distribution, lower density, and better self-sharpening ability than non-P-grit abrasives, which means that they offer a more consistent surface finish.

Grit size: 16#, 20#, 24#, 30#, 36#, 46#, 54#, 60#, 80#, 100#, 120#, 150#, 180#, 220#
Micropowder: 240#, 280#, 320#, 360#, 400#, 500#, 600#, 800#, 1000#, 1200#, 1500#,  2000#
Refractory Grit size:1-0mm, 3-1mm, 5-3mm, 5-8mm, -200mesh, -240mesh, -320mesh.

 

Packaging & Shipping
1. 1 ton bags in container, 25 MT/20'FCL.
2. 25kg bags in container, 25 MT/20'FCL
3. 25kg bags in ton bags, then in container, 25 MT/20'FCL
4. as the customer' request.

Why Choose us?
1) 20 years abrasive industry experiences
2) Direct Factory supply & Fixed abrasive sources
3) On-site inspection in factory for each shipment
4) Samples tests each lot in Zhengzhou Research Institute for Abrasives& Grinding Co., Ltd
 
Our Brown fused alumina grit has been exported to Japan, India, Israel, Russia, Poland etc.
Pls send me email to get Brown fused alumina datasheet /samples and quotation…