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Kiln car refractory brick with hollow,Using Flint clay, mullite and cordierite as the main raw material, kiln car bricks feature good thermal shock resistance and low thermal expansion coefficient. Therefore service lift is much longer than normal fireclay bricks.
Feature：
1.Low thermal conductive, low heat storage
2.Good thermal insulation, enable the use of thin-walled constructions
3.The good alumina contents confer good refractoriness
4.Iow iron and alkali fluxcontent contributes to their stability to reducing atmosphere
5.These can be machined to special shapes, incurring fewer sections and joints
Main Properties：
|
Item |
SK-30 |
SK-32 |
SK-34 |
SK-36 |
SK-38 |
|
AL2O3%(min) |
30-35% |
35-38% |
38-42% |
50-55% |
65-70% |
|
Fe2O3%(max) |
3.5 |
3.2 |
3.1 |
2.5 |
2.3 |
|
Refractoriness |
≥1630℃ |
≥1660℃ |
≥1700℃ |
≥1730℃ |
≥1780℃ |
|
Refractoriness under load,0.2MPa,(℃) |
≥1270 |
≥1350 |
≥1350 |
≥1380 |
≥1400 |
|
Apparent porosity(%) |
24 |
24 |
23 |
22 |
20 |
|
Bulk density(g/cm³) |
2.00-2.05 |
2.05-2.1 |
2.1-2.15 |
2.15-2.25 |
2.25-2.35 |
|
Cold crushing strength(MPa) |
≥25 |
≥30 |
≥35 |
≥45 |
≥50 |
|
Thermal expansion at 1000℃(%) |
≤0.6 |
≤0.55 |
≤0.55 |
≤0.4 |
≤0.4 |
|
Package：fumigation pallet |
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Size: Can be customized according to customer requirements |
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