Grade II high alumina brick (T-19)
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High Alumina Brick (T-19)
Description of high alumina brick: (Class I, II, III)
According to the content of Al2O3, high alumina bricks are usually divided into three grades: Grade I──Al2O3 content>75%; Grade II──Al2O3 content is 60~75%; Grade III──Al2O3 content is 48~60%.
High compressive strength, high load softening temperature, anti peeling High alumina refractory brick is made of high alumina bauxite as the main raw material by strengthening the close combination of matrix and particles, adding composite binder, and sintering at high temperature. It has the characteristics of high pressure resistance, high load softening temperature, anti peeling, etc. It is very suitable for the lining of CFB boilers and other thermal kilns.
Good volume stability at high temperature. High mechanical strength. Good wear resistance. The tissue is dense. Low porosity. Good slag resistance. Iron oxide content is low.
It mainly includes high alumina bricks, clay bricks, corundum bricks, silicon carbide bricks and carbon bricks. In the blast furnace, due to the different working conditions of each part, the temperature fluctuation is large, and the thermal shock borne by each part is also different, so the refractory required by each part is also different.
High Alumina Brick Parameters
Physical and chemical indexes of products
| Item/Model | DFGLZ-85 | DFGLZ-75 | DFGLZ-65 |
|---|---|---|---|
| Al203(%) | ≥85 | ≥75 | ≥65 |
| Refractoriness (C) | 1790 | 1790 | 1770 |
| 0.2MPa Start temperature of load softening (C) | 1520 | 150TU | 1470 |
| 1500℃×2h Linear change rate of reburning (%) | ±0.4 | ±0.4 | ±0.4 |
| Apparent porosity(%) | ≤20 | ≤20 | ≤22 |
| Normal temperature compressive strength (MPa) | ≥80 | ≥70 | ≥60 |
| Note.The performance and technical indicators can be adjusted according to the service conditions. | |||
| Refractory materials with different indicators can be customized according to demand.Call 400-188-3352 for details | |||
| project | GL-65 | GL-55 | GL-48 |
|---|---|---|---|
| Al₂O₃ % ≥ | 65 | 55 | 48 |
| Fe₂O₂ % ≤ | 2 | 2 | 2 |
| Refractoriness ℃ ≥ | 1800 | 1780 | 1760 |
| RUL ℃ ≥ | 1500 | 1480 | 1450 |
| %P.L.C 1450℃*2h | -0.2～+0 | -0.2～+0 | -0.2～+0 |
| A.P % ≤ | 23 | 24 | 24 |
| MPa ≥ | 55 | 45 | 40 |
Remark:
This data sheet is just for your reference.
If you have special requirements, please contact with us.
FAQ
Q1. Timely response
Timely response to your inquiry, multiple choice recommend ations based on your demand.quickly respond mails and provide solutions.
Q2. ls there any cost for the sample?
We provide free sample but don't bear the freight.
Q3. why should you buy from us not from other suppliers?
We have own mine, we has the whole industrial chain production scale, from mining to finished product,after processing direct sell to you, the price more better than trading company.
Q4. What's the MOQ of trial order?
No limit, we can offer the best suggestions and solutions according to your condition.
Q5: Why choose us?
We had been in this line for more than 20 years, we can not only provide you high quality products with competitive price, but also we can supply good technique service which can help you solve problems.
