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Mullite Castable

Category: Refractory Castable

Mullite castable are characterized by high strength, good volume stability and excellent thermal shock resistance. It has the advantages of erosion resistance, scouring resistance and abrasion resistance in the process of use.

Al2O3: 55-70%
Erosion resistance
High strength
Good thermal stability
Castable Series Data Sheet

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Product Details

Mullite castable are used at high temperature and can be used as working lining in direct contact with flame. It is suitable for petrochemical industry tubular heating furnace, light diesel oil, ethane cracking furnace lining, normal decompression furnace, sulfur recovery device, steam boiler, turtle net heat insulation layer, two ware barrel and pipe heat insulation single layer, other industrial furnace door, watch fire hole, observation hole door lining, etc.

Mullite castables performance index

Product Grade	KRMJ55	KRMJ60	KRMJ65	KRMJ70
Al2O3 content, % ≥	55	60	65	70
Bulk density, g/cm3 ≥	2.2	2.3	2.4	2.5
Flexural strength, MPa ≥	7	7	8	9
Compressive strength, MPa ≥	30	35	40	45
Linear variation(%) ≤	±0.5	±0.5	±0.5	±0.5
Maximum use temperature, ℃	1450	1500	1550	1600

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Mullite Castable

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