MARSREF is a supplier of SK30/SK32/SK34/SK35 clay bricks, which have an alumina content of less than 48% and are fired at a high temperature of 1300-1400°C. Since clay bricks are weakly acidic refractory products, they can resist the erosion of acidic slag and acidic gas, but have a slightly poorer resistance to alkaline substances.
Because clay bricks are common refractory materials, they are widely used. They are mainly used in steel industry such as heating furnaces, continuous annealing furnaces, kiln cars, ladle covers, etc. As well as various high-temperature industrial kilns such as annealing furnaces, normalizing furnaces, tempering furnaces, and soaking furnaces.
Welcome to inquiry us about fire clay bricks price, size, technical data, and anything you want to know.
Performance Characters:
|
Item/Grade |
SK30 |
SK32 |
SK34 |
SK35 |
|
Al2O3 % |
≥30 |
≥35 |
≥38 |
≥45 |
|
Fe2O3 % |
≤2.5 |
≤2.5 |
≤2.0 |
≤2.0 |
|
Refractoriness； SK |
30 |
32 |
34 |
35 |
|
Apparent porosity； % |
22-26 |
20-24 |
20-22 |
18-20 |
|
Bulk density； g/cm3 |
1.9-2.0 |
1.95-2.1 |
2.1-2.2 |
2.15-2.22 |
|
cold crushing strength； Mpa |
≥20 |
≥25 |
≥30 |
≥40 |
|
Refractoriness under load, ℃ 0.2MPa, |
≥1400 |
≥1350 |
≥1320 |
≥1300 |
Low creep fireclay refractory brick
Low porosity refractory brick
Dense fireclay brick
Common Clay Brick
