Mullite insulation brick


This series of products using high purity raw materials and unique production process, to avoid the impact of impurities and structural defects on the performance of products

This series of products using high purity raw materials and unique production process, to avoid the impact of impurities and structural defects on the performance of products, with extremely excellent high temperature volume stability and thermal shock stability, and high strength, low thermal conductivity, can be direct contact with the flame and other characteristics. It has a wide range of adaptability to various furnace types and various environments, and can be used in metallurgy, machinery, ceramic and chemical industries such as kiln lining (not subject to molten liquid erosion) and insulation layer is an ideal energy-saving product.

Project Mullite insulation brick
ZKMG23 mullite brick ZKMG23 mullite brick ZKMG26 mullite brick ZKMG26 mullite brick ZKMG30 mullite brick ZKMG30 mullite brick
Al₂O₃%≥ 40 46 55 55 65 70
Fe₂O₃%≤ 1 1 0.8 0.8 0.7 0.6
Bulk density g/cm³ ≤ 0.6 0.8 0.85 1 0.95 1.05
Normal temperature compressive strength Mpa ≥ 1 2.5 2.5 3 3.0  3
The test temperature at which the change rate of re-burning line is not more than 2%, ℃$≤ 1200 × 12h 1300 × 12h 1400 × 12h 1400 × 12h 1500 × 12h 1600 × 12h
Thermal conductivity Average temperature 350±25 ℃(W/m.k) 0.2 0.32 0.32 0.40  0.37 0.44

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