high quality refractory insulating fire brick

Specifications Mulite insulating brick

1.High insulating properties

2.Strong compressive strength

3.Low heat storage

4.Low impurities

high quality refractory insulating fire brick    Insulating mullite firebricks: It covers six temperature classes: 1300C, 1400C, 1500C, 1550C, 1600C, includes standard brick, special-shaped brick, and refractory mortar. Our brick mainly are used in the field of lining and backing of the hot surface of cracking heater, reborner, hot-blast furnace, heating furnace, soaking pit, heat treatment furnaces, resistance furnace, heating device, refining device, tunnel kiln, roller kiln, shuttle kiln, top-hat kiln and glass tank furnace in the industries of metallurgy, petrochemical, building materials, ceramics, machinery etc.     

Mullite insulating brick
Dimension	230×114×65(mm)
Bulk Density	0.5-1
Packaging Details	Wooden pallet
Applications	industrial Annealing furnace, Carbonization furnace, Tempering furnace.

       Mulite thermal insulating brick  

Item	JM23	JM26	JM28	JM30
AL2O3(%)	38-44	50-58	65-70	70-73
Fe2O3(%)	1.0	0.9	0.8	0.7
Classification Temperature (°C)	1350	1430	1540	1600
Bulk Density (g/cm3)	0.8-1	0.8-1	0.8-1	0.8-1
Reheating Linear Change (%)   CT-30 °CX 8H	1250°C -0.5	1400°C -0.5	1500°C -0.5	1550°C -0.5
Cold Crushing Strength (Mpa)	2.0-3.5	2.0-3.5	2.0-3.5	2.0-3.5
Modulus of Rupture (Mpa)	1.5	1.7	1.8	2.0
Thermal conductivity400°C(W/m.k)	0.25	0.27	0.32	0.41
Thermal Expansion1000°C(%)	0.5	0.7	0.8	0

       Mulite thermal insulating brick features   1.High insulating properties 2.Strong compressive strength 3.Low heat storage 4.High purity 5.Tight dimensional tolerance 6.Energy saving 7.Low impurities