China Refractory Mullite Castable for Ladles China Manufacturer Mullite Section SFused Mullite

Refractory mullite castable for ladles China Manufacturer mullite section sand high quality fused mullite

Description:

Mullite is a series of aluminum silicate minerals collectively, the minerals scarce. Mullite is an aluminum silicate minerals at high temperatures generated, it will form artificial heating aluminum silicate mullite. Natural mullite crystals and needles are radially elongated clusters. Mullite quarry is used to produce high temperature refractory material.

Fused mullite is widely used in:
1. Low creep-rupture bricks for the hot-air stove
2. Melting-iron groove or torpedo car
3. High-temperature industrial kiln
4. Glass melting furnace
5.Shed planks

Item/GradeM45M47M60M70Al2O3 ( %,Min ) 4547 6070 Fe2O3 ( %,Max ) 1.01.2 1.35 1.3 SiO2 ( %, Max ) 5250 37 27 TiO2 ( % ) 0.81.0 1.8 0.8 K2O ( % ) 0.08 0.08 0.1 0.1 Na2O ( % ) 0.08 0.08 0.08 0.1 MgO ( % ) 0.1 0.1 0.1 0.1 CaO ( % ) 0.3 0.30.35 0.35 Bulk density ( g/cm3 ) 2.55 2.64 2.78 2.8 Refractoriness deg.C Min 1750 1790 1820 1850 Apparent porosity ( % ) Max 2.0 2.0 2.8 2.8 Mullite ( % ) 55 65 78 78Water absorption ( % ) Max3.03.03.0

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