High Fire Resistance Cheap Thermal Insulation Refractory Light Clay Brick

• Application: Blast Furnace, Cement Kiln, Ceramic Kiln, Chemical Kiln, Glass Kiln, Steel-Making Furnace
• Material: Alumina Block
• Refractoriness (℃): 1580< Refractoriness< 1770
• Production Process: Extrusion Method
• Bulk Density(g/cm3): 0.6-1.25
• Thermal Conductivity: 0.17-0.51
• Cold Crushing Strength: 1.0-10MPa
• Transport Package: Sea-Worthy Wooden Case
• Specification: customized
• Trademark: vuulcan
• Origin: China

Product Description

Thermal insulation clay brick product description

The bulk weight of light insulation brick is 0.60 ~1.25g/cm3. Operating temperature range is 900 ºC to 1600ºC. Each grade is uniquely designed to meet different thermal, physical and chemical requirements. Lightweight insulation bricks are made of high-quality ultra-pure raw materials and are strictly classified according to their grade of filling. Each face of the brick is machined and ground to the exact size required. The material profited by reducing fuel costs, construction costs, and time spent in high-temperature furnaces.

Characteristics of thermal insulation clay bricks

Low thermal conductivity
Low bulk density
Light weight
Low creep rate at high temperature
Good thermal shock resistance and high temperature resistance
Good performance, high refractoriness


Application of thermal insulation clay brick

Other refractory materials hot surface refractory lining or backing insulation layer. Refractory lining or heat insulation materials for industrial furnaces in petroleum and chemical industry, such as ethylene cracking furnaces, tube furnaces, synthetic ammonia reforming furnaces, gas producer furnaces, high-temperature shuttle furnaces, etc.

Alumina content ranges from 40% to 80%
Widely used in metallurgical industry

Brand roperties	B-1	B-2	B-3	B-4	B-5	B-6	B-7	C-1	C-2	C-3
≤ 2.0%   Reheating Shrinkage Temp (ºC)	900	1,000	1,100	1,200	1,300	1,400	1,500	1,300	1,400	1,500
Bulk Density (g/cm3)	0.70≥	0.70≥	0.75≥	0.80≥	0.80≥	0.90≥	1.00≥	1.10≥	1.20≥	1.25≥
(kg/cm2)   Cold Crushing Strength	25≤	25≤	25≤	25≤	25≤	30≤	30≤	50≤	70≤	100≤
(W/m.k) at 350ºC  Thermal conductivity	0.17≥	0.18≥	0.20≥	0.22≥	0.23≥	0.27≥	0.31≥	0.30≥	0.38≥	0.45≥
Main Applications	Ceramic Roller kiln reheating                                                            Reheating Furnace Blast Furnace                                                                            Petrochemical Furnace General Industrial Furnace etc.

Brand Properties		JM-23	JM -26	JM -28	JM -30	JM -32
Classification temperature  (ºC)		1300	1400	1500	1550	1600
Bulk Density (g/cm3)		0.6	0.8	0.9	1.0	1.1
Cold Crushing Strength (MPa)		1.2	1.8	2.5	3.3	3.5
Modulus of rupture (MPa)		1.0	1.7	2.3	3.1	3.2
(CTºCX24h)            Permanent Linear Change (%)		0.6	0.6	0.8	0.9	1.01
@ 1,100ºC                Thermal Linear Expansion(%)		0.50	0.52	0.52	0.53	0.7
Thermal conductivity (W/m.k)	350ºC	0.18	0.27	0.32	0.38	0.49
	400ºC	0.20	0.29	0.34	0.40	0.5
	600ºC	0.24	0.32	0.36	0.42	0.51
(%) Chemical Analysis	Al2O3	40	56	67	73	77
	Fe2O3	1.0	0.8	0.7	0.7	0.5
Main Applications		Ceramic Roller kiln reheating                                                            Reheating Furnace Blast Furnace                                                                            Petrochemical Furnace General Industrial Furnace etc.