Zhengzhou Rongsheng Refractory Co., Ltd.
| Alkali Resistance | High |
| Durability | High |
| Impact Resistance | High |
| Feature | High load softening starting temperature |
| Thermal Conductivity | ≤ 2.5 W/m·K |
| Application Temperature | High |
| Linear Change Rate | ± 0.2% |
| Softening Point | High |
| Bending Strength | ≥25MPa |
| Surface | Smooth |
| Carbon Content | ≤1.5% |
| Thermal Expansion | ≤0.6% |
| Keyword | 55% Al2O3 high alumina brick |
| Item | high alumina brick |
| Cold Crushing Strength | ≥ 50 MPa |
| Brand Name | RONGSHENG |
| Certification | ISO9001 |
| Place of Origin | Henan, China |
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Product Specification
| Alkali Resistance | High | Durability | High |
| Impact Resistance | High | Feature | High load softening starting temperature |
| Thermal Conductivity | ≤ 2.5 W/m·K | Application Temperature | High |
| Linear Change Rate | ± 0.2% | Softening Point | High |
| Bending Strength | ≥25MPa | Surface | Smooth |
| Carbon Content | ≤1.5% | Thermal Expansion | ≤0.6% |
| Keyword | 55% Al2O3 high alumina brick | Item | high alumina brick |
| Cold Crushing Strength | ≥ 50 MPa | Brand Name | RONGSHENG |
| Certification | ISO9001 | Place of Origin | Henan, China |
| High Light | high alumina refractory fire bricks ，fireclay bricks for electric arc furnace ，230x114x65mm refractory bricks | ||
High Refractoriness Aluminum Silicate Fire Bricks 1200c 1300c 1400c Alumina Refractory Bricks
High Alumina Bricks
High Alumina Brick Is a Kind Of Neutral Refractory With Alumina Content Above 48%. It Is Formed By Shaping And Calcining Bauxite Or Other Raw Materials With High Alumina Content. High Thermal Stability And Fire Resistance > 1770 ℃. We Bring Forth High Quality High Alumina Bricks, Which Is Manufactured To Meet The Requirements Of Neutral Refractoriness Where Safe Working Temperature > 1300 ℃. We Offer High Alumina Bricks In Different Specifications As Per Customer Requirements.
High Alumina Brick Features
1.Refractoriness:
The refractoriness of high aluminum brick is higher than that of clay brick and semi-silicon brick, up to 1750~1790℃, which is a high-grade refractory material.
2.Refractoriness Under Load:
Because the Al2O3 in high aluminum products is high, the impurity is less, the formation of fusible glass body is less, so the load softening temperature is higher than that of clay bricks.
3.Slag Resistance:
There are more Al2O3 in high aluminum bricks, close to neutral refractory materials, which can resist the erosion of acidic slag and alkaline slag.
High Alumina Bricks Application
1.Used for masonry lining of steel making furnaces,glass furnaces ,cement rotary furnaces.
2. Used for blast stoves , electric furnace tops , for hot blast stoves , electric furnace tops ,blast furnaces , reverberatory furnaces ,rotary kiln linings.
3. High alumina bricks can also be processed into open hearth regenerative grid bricks, socket bricks for pouring system, nozzle bricks, etc. according to the requirements of industrial furnaces.
High Alumina Refractory Brick Physical and Chemical Index:
| Item/Grade | Fire Clay Brick | High Alumina Brick | ||||||
| SK-30 | SK-32 | SK-34 | SK-35 | SK-36 | SK-37 | SK-38 | SK-40 | |
| AL2O3% (≥) | 30 | 35 | 38 | 45 | 55 | 65 | 70 | 82 |
| Fe2O3% (≤) | 2.5 | 2.5 | 2 | 2 | 2 | 2 | 2 | 2 |
| Refractoriness(SK) | 30 | 32 | 34 | 35 | 36 | 37 | 38 | 40 |
| Refractoriness Under Load, 0.2MPa, °C (≥) | 1250 | 1300 | 1360 | 1420 | 1450 | 1480 | 1530 | 1600 |
| Apparent Porosity (%) | 22-26 | 20-24 | 20-22 | 18-20 | 20-23 | 20-23 | 20-22 | 18-20 |
| Bulk Density (g/cm³) | 1.9-2.0 | 1.95-2.1 | 2.1-2.2 | 2.15-2.22 | 2.25-2.4 | 2.3-2.5 | 2.4-2.6 | 2.5-2.7 |
| Cold Crushing Strength ,MPa (≥) | 20 | 25 | 30 | 40 | 45 | 50 | 60 | 70 |
| Brick Standard Sizes | |||||
| SPLITSTRAIGHT L×W×H(mm) | SPLIT L×W×H(mm) | ARCH L×W×H(mm) | WEDGE L×W×H(mm) | TILE L×W×H(mm) | OTHER SHAPE |
| 230×114×65 | 230×114×25 | 230×114×65/45 | 230×114×65/45 | 230×230×38 | Key brick |
| 230×114×75 | 230×114×32 | 230×114×65/55 | 230×114×65/55 | 230×230×50 | Skew brick |
| 230×114×37 | 230×114×75/45 | 220×114×75/45 | 230×230×65 | Soap | |
| 230×114×50 | 230×114×75/55 | 220×114×75/55 | 230×230×75 | Checker | |
| ≤10 | 230×114×75/65 | 220×114×75/65 | Neck | ||
| Taper | |||||
| Application | Steel furnace, glass furnace, sodium silicate furnace, ceramic shuttle kiln, cement rotary kiln, blast furnace, electric furnace,blast furnace and reverberatory furnace. | ||||
| We also can make brick according to customers’ drawing and requirements. | |||||
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
20000000-50000000
Employee Number:
101~150
Ecer Certification：
Verified Supplier
Our company can provide not only the domestic and foreign customers excellent quality of high-temperature thermal insulation material, but also the first-rate service including professional furnace lining design, installation supervision, engineering construction etc. <p style="... Our company can provide not only the domestic and foreign customers excellent quality of high-temperature thermal insulation material, but also the first-rate service including professional furnace lining design, installation supervision, engineering construction etc. <p style="...
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