refractory ball
Features
The diameter of the product is normallyφ40-φ80mm,large surface area, sufficient heat exchange.It was mainly used in various hot stove with above500m³blast furnace,because of different wind temperature and ash density containing in coal gas for buring,the material of ball is differ.
|
Item |
High strength high alumina ball |
Low creep high alumina ball |
|
φ40 mm |
φ50 mm |
φ60 mm |
φ50 mm |
φ60mm |
|
Al2O3% |
≥65 |
≥65 |
≥65 |
≥65 |
≥65 |
|
Fe2o3% |
≤2.2 |
≤2.2 |
≤2.2 |
≤2.0 |
≤2.0 |
|
Refractoriness ℃ |
≥1790 |
≥1790 |
≥1790 |
≥1790 |
≥1790 |
|
Apparent porosity% |
≤24 |
≤24 |
≤22 |
≤22 |
≤22 |
|
Volume density g/cm³ |
≥2.2 |
≥2.3 |
≥2.4 |
≥2.4 |
≥2.4 |
|
Compression strength(Mpa) |
≥10000 |
≥12000 |
≥15000 |
≥13000 |
≥15000 |
|
RUL(Refractoriness Under Load) |
≥1460 |
≥1460 |
≥1480 |
≥1480 |
≥1500 |
|
Reheating Liner Change Rate |
- |
- |
- |
0.1~0.4 |
0.1~0.4 |
|
Creep rate% |
- |
- |
- |
1450℃x50h ≤1 |
1450℃x50h≤1 |
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Our Company
Henan Guangda Refractories Co., Ltd is a high-tech enterprise which is dedicated to the refractory materials research and development, production, trade and engineering. Our company owns a professional technical research and development team that has been engaged in the refractory materials for decade years, owns advanced production equipments and testing equipment with the excellent marketing team. Our company has a sound management system for the market development and after-sale service. We will, as always, insist on the principle of quality first, customer first, putting quality and customers first, wholeheartedly provide the best quality......
