Product description
Brown Aluminum Oxide Powder For Refractory Castables
Brown fused alumina Refractory is made of high-quality bauxite, anthracite and iron filings. It is cooled and smelted at a high temperature by more than 2000 degrees in an electric arc. It is crushed and shaped by a jaw crusher and a ball mill. After magnetic separation, the sieve is divided into various kinds. Its compact texture, high hardness, suitable for the manufacture of ceramics, grinding of high tensile metal and grinding, polishing, sandblasting, precision casting, etc., can also be used to manufacture advanced refractory materials.
Technical Data Sheet
| TYPICAL CHEMICAL ANALYSIS | |||||||
| Application | TYPE | SIZE | chemical composition | ||||
| AL2O3 | Fe2O3 | Si2O | Ti2O | Magnetic content | |||
| Refractory | Section Sand (made by Barnac milling machine) | 0-1mm,1-3mm,3-5mm,5-8mm | ≥95% | ≤0.2% | ≤1.5% | ≤3.0% | / |
| Section Sand | 0-1mm,1-3mm,3-5mm,5-8mm | ≥94% | ≤0.3% | ≤1.5% | ≤3.0% | / | |
| Fine powder | 200-0#,320-0# | ≥92% | ≤0.5% | ≤1.5% | ≤3.5% | / | |
| Abrasive | Grain for bonded abrasive | 8-80# | ≥94% | ≤0.3% | ≤1.5% | ≤3.0% | ≤0.05% |
| 90-150# | ≥93% | ≤0.03% | |||||
| 180-240# | ≥92% | ≤3.5% | ≤0.02% | ||||
| Grain for coated abrasive | 8-80# | ≥94% | ≤0.2% | ≤1.2% | ≤3.0% | ≤0.05% | |
| 100-150# | ≥93% | ≤0.03% | |||||
| 180-220# | ≥93% | ≤0.3% | ≤1.5% | ≤3.5% | ≤0.02% | ||
| Micro powder | W63-W0.5 | ≥92% | ≤0.5% | ≤1.8% | ≤4.0% | / | |
| F230-F1200# | |||||||
| 240-3000# | |||||||
| Typical physical properties | |||||||
| Basic minerals: | Al2O3 | Hardness: | Mohs 9.0 | Melting Point: | 2200 ℃ | Maximum service temperature | 1850℃ |
| Specific Gravity: | 3.95g/cm3 | Bulk density(LPD): | 1.53-1.99 g/cm3 | Color: | Brown | Particle shape: | Trigonal |
Brown fused alumina 95% Al2O3 Brown fused alumina 94% Al2O3 Brown fused alumina powder 94% Al2O3
What the different of the two kinds of BFA refractory section and:
1.Purity:
Brown fused alumina refractory sand made by Barmac milling machine get an Al2O3 purity min 95%.
Brown fused alumina refractory sand made by ball milling machine get an Al2O3 purity min 94%.
2.Shape:
Brown fused alumina refractory sand made by Barmac milling machine was reshaped and get a rounder sand shape.
Brown fused alumina refractory sand made by ball milling machine is with sharper sand shape.
Available Sizes for Refractory:
| Size | Unit | Certified Value | Typical Value | |||||||
| 8-5mm | mm | 8 | -4 | 9.52 | 8 | 6.7 | 5.6 | 4.75 | -4 | - |
| % | 5 | 5 | 0 | 0-5 | 35-55 | 75-95 | 90-100 | 0-5 | ||
| 6-3mm | mm | 5.6 | -2.8 | 8 | 6.7 | 5.6 | 4.75 | 3.35 | 2.8 | -2.8 |
| % | 40max | 10max | 0 | 0-5 | 15-35 | 40-65 | 75-95 | 90-100 | 0-10 | |
| 5-3mm | mm | 4.75 | -2.8 | 5.6 | 4.75 | 3.35 | 2.8 | -2.8 | ||
| % | 10max | 10max | 0 | 0-10 | 60-80 | 90-100 | 0-10 | |||
| 3-1mm | mm | 2.8 | -1 | 4.75 | 3.35 | 2.8 | 2 | 1.18 | 1 | -1 |
| % | 10max | 10max | 0 | 0-5 | 43840 | 30-50 | 70-90 | 90-100 | 0-10 | |
| 1-0mm | mm | 1 | -0.212 | 1.18 | 1 | 0.5 | 0.212 | -0.212 | ||
| % | 5max | 35max | 0 | 0-5 | 30-50 | 65-85 | 0-35 | |||
| 100mesh | mm | 0.15 | - | 0.2 | 0.15 | -0.15 | ||||
| % | 5max | - | 0 | 0-5 | 95-100 | |||||
| 200mesh | mm | 0.075 | - | 0.1 | 0.075 | -0.075 | ||||
| % | 5max | - | 0 | 0-5 | 95-100 | |||||
| 325mesh | mm | 0.045 | - | 0.075 | 0.045 | -0.045 | ||||
| % | 5max | - | 0 | 0-5 | 95-100 | |||||
1.Refractory bricks, tiles
2.Ramming and gunning mixture
3.Filter plates
4.Castable and aggregate.
5.Other anti-thermal refractory products.
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Zhengzhou Haixu abrasives co., Ltd, founded in 1 9 9 9, located in Xingyang City, Henan Province, China. With 20 years of production experience and professional technical and marketing team, Haixu Abrasives has established long term cooperation with foreign customers which are from about forty countries including United States, Germany, Italy, Japan, Korea, Russia, Malaysia, and Vietnam.
Zhengzhou Haixu Abrasives Co., Ltd has over 7500 square kilometers workshop for production and QC department with all kinds of testing equipments including Omec, Slap-sieve and microscope, Office for accounting, purchasing, importing, exporting, after-sales service, logistics. HAIXU now become a leading brand in the abrasives material field.
All the materials are produced under professional standards, running under the production standards of GB, FEPA, JIS, and AFS separately. Our staff from Haixu Abrasives are always providing good quality products, professional service, and proper solutions for all clients all over the world.
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