Place of Origin:
China
Brand Name:
Annec
Certification:
ISO
Product description
Check brick for cowper stove is made out of a naturally-occurring material known as bauxite.This material include aluminum hydroxide, which is what give the brick such great warmth resistance. High alumina refractory brick also include kaolinitic clays, which are roasted to create an unique combination including mullite and also synthetic alumina. This is where the name “high alumina” stems from.
we always select the highest quality raw material to guarantee product quality.
Physical and Chemical Index
High Alumina Checker Bricks | ||||||||
Item | Unit | DRL-155 | DR-150 | DRL-145 | DRL-140 | DRL-135 | DRL-130 | DRL-127 |
Al2O3 | % | ≥75 | ≥75 | ≥65 | ≥65 | ≥65 | ≥60 | ≥50 |
Apparent Porosity | % | ≤20 | ≤21 | ≤21 | ≤22 | ≤22 | ≤22 | ≤23 |
Bulk Density | % | 2.65~2.85 | 2.65~2.85 | 2.5~2.7 | 2.4~2.6 | 2.35~2.55 | 2.3~2.5 | 2.3~2.5 |
Cold Crushing Strength | Mpa | ≥60 | ≥60 | ≥60 | ≥55 | ≥55 | ≥55 | ≥55 |
Creep Rate(0~50h ,0.2MPa) | % | 1550℃ 0.8 |
1500℃ 0.8 |
1450℃ 0.8 |
1400℃ 0.8 |
1350℃ 0.8 |
1300℃ 0.8 |
1270℃ 0.8 |
Linear Change on Reheating | % | 1550℃×2h 0.1 ~ -0.2 |
1550℃×2h 0.1 ~ -0.2 |
1550℃×2h 0.1 ~ -0.2 |
1450℃×2h 0.1 ~ -0.2 |
1450℃×2h 0.1 ~ -0.4 |
1450℃×2h 0.1 ~ -0.4 |
1450℃×2h 0.1 ~ -0.4 |
Features
1.High-temperature endurable .
2.Good thermal shock resistance .
3.High cold crushing strength.
4.Good resistance to abrasion and corrosion.
5.Good thermal spalling resistance.
6.High mechanical strength.
7.Good volume stability at high temperature.
Checker Brick High Alumina Refractory Brick for Electric Arc Furnace Applications:
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