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| Packaging Detail: | 25kg bag or ton bag or as your requirement. |
| Delivery Detail: | within 20 days delivery after receipt of advance payment. |
99% high purity abrasive White fused alumina for refractory
1.White fused alumina99%
2.Refractory: 0-1mm, 1-3mm, 3-5mm, 5-8mm
Products discription
1.Introduction
The main raw material of white fused alumina is high grade processed alumina, which is fused with the carbon material and scrap iron in the electic furnace under the high temperature of above 2200°C.The product is characterized by low expansion coefficient, high refractoriness, good thermal and chemical stability.
2. Grain size commonly used
Refractory: 0-1mm, 1-3mm, 3-5mm, 5-8mm ,200#-0, 325#-0.
Abrasives: F24-F60.
Sandblasting abrasive:F10-F240.
Precision casting: F80-100, F100-F120.
Ceramic & electronic polishing:F240-800.
3.Physical properties of White Fused Alumina
Item | Color | Color System | Mohs Hardness | Melting Temperature(°C) | Refractory Temperature(°C) | True Density( g/cm3) | Magnetic Material |
Specification | white |
trigonal system | min10 | 2250°C | 1900°C | min3.50 | max0.003%
|
4.Chemical index of White Fused Alumina
Purpose | Specification | Chemical composition(%) | Magnetic material content(%) | ||||
Al2O3 | Na2O | SIO2 | CaO | ||||
For abrasive | F | 12#—80# | min99 | max0.6 | max0.4 | max0.003 | |
90#—150# | min98.5 | max0.003 | |||||
180#—240# | min98.2 | max0.7 | max0.4 | max0.002 | |||
For refractory | Size sand | 0—1mm | min99 | max0.5 | max0.4 | max0.003 | |
1—3mm | |||||||
3—5mm | |||||||
5—8mm | |||||||
Fine powder | 200#—0 | min98.5 | max0.5 | max0.5 | max0.003 | ||
325#—0 | |||||||
