Natural No Impurities Carborundum Grain High Purity Good Grinding Performance
natural no impurities carborundum grain high purity good grinding performance
Product name: section sand of brown fused alumina
Specification: 180#
Industrial uses :
( 1 ) Due to the high temperature resistance, corrosion resistance, high strength and other properties, so the steel sliding nozzle, smelting rare precious metals, special alloys, ceramics, ironmaking blast furnace lining ( wall and tube ) ; physicochemical vessels, spark plugs, heat-resistant and antioxidant coatings.
( 2 ) due to the hardness, good wear resistance, high strength characteristics, in the chemical system, used as a variety of reaction vessels and pipelines, chemical pump components ; make mechanical parts, various molds, such as wire drawing die, pencil core die nozzle, etc. ; make tools, mold abrasives, bulletproof materials, human joints, sealing mold rings, etc.
AVERAGE CHEMICAL COMPOSITION(TYPICAL)
| Al2O3 | Fe2O3 | Tio₂ | SiO2 |
| ≥95% | ≤0.3% | ≤0.3% | ≤1.5% |
PHYSICAL PROPERTIES(TYPICAL)
Mohs hardness | Proportion | Melting point | Max. Working temperature | Crystalline form |
| ≥9.0 | ≥3.90g/cm3 | 2250℃ | 1900℃ | tripartite crystal system |
Composition standard of grit size GB/T 2479-2008
| max coarse particles |
Coarse particles |
|
Mixed particles |
Meal grain | |||
| 100% passed the following sieve number | no pass the sieve number | no more than weight % | No pass the sieve number | no less than weight % | no pass the sieve number | no less than weight % | passed the following sieve number most weight 3% | |
| 10# | 6 | 8 | 20 | 10 | 45 | 10 12 | 70 | 14 |
| 12# | 7 | 10 | 20 | 12 | 45 | 12 14 | 70 | 16 |
| 14# | 8 | 12 | 20 | 14 | 45 | 14 16 | 70 | 18 |
| 16# | 10 | 14 | 20 | 16 | 45 | 16 18 | 70 | 20 |
| 20# | 12 | 16 | 20 | 18 | 45 | 18 20 | 70 | 25 |
| 22# | 14 | 18 | 20 | 20 | 45 | 20 25 | 65 | 30 |
| 24# | 16 | 20 | 25 | 25 | 45 | 25 30 | 65 | 35 |
| 30# | 18 | 25 | 25 | 30 | 45 | 30 35 | 65 | 40 |
| 36# | 20 | 30 | 25 | 35 | 45 | 35 40 | 65 | 45 |
| 40# | 25 | 35 | 30 | 40 | 40 | 40 45 | 65 | 50 |
| 46# | 30 | 40 | 30 | 45 | 40 | 45 50 | 65 | 60 |
| 54# | 35 | 45 | 30 | 50 | 40 | 50 60 | 65 | 70 |
| 60# | 40 | 50 | 30 | 60 | 40 | 60 70 | 65 | 80 |
| 70# | 45 | 60 | 25 | 70 | 40 | 70 80 | 65 | 100 |
| 80# | 50 | 70 | 25 | 80 | 40 | 80 100 | 65 | 120 |
| 90# | 60 | 80 | 20 | 100 | 40 | 100 120 | 65 | 140 |
| 100# | 70 | 100 | 20 | 120 | 40 | 120 140 | 65 | 200 |
| 120# | 80 | 120 | 20 | 140 | 40 | 140 170 | 65 | 230 |
| 150# | 100 | 140 | 15 | 170 200 | 40 | 170 200 230 | 65 | 325 |
| 180# | 120 | 170 | 15 | 200 230 | 40 | 200 230 270 | 65 | |
| 220# | 140 | 200 | 15 | 230 270 | 40 | 230 270 325 | 60 | |
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