refractory insulating brick for heat treatment furnaces

Specifications Mulite insulating brick

1.High insulating properties

2.Strong compressive strength

3.Low heat storage

4.Low impurities

refractory insulating brick for heat treatment furnaces    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