0.6-1.0g/cm3 Density Jm26 Light Weight Fire Refractory Mullite Insulating Brick for Kiln Lining

• Customization: Available
• Classification: Clay
• Feature: Good Mechanical Strength, Good Thermal Insulation Performance, High-Temperature Resistant, Light Weight, Low Thermal Conductivity, Long Time Materials
• Production Process: Extrusion Method
• Refractoriness (℃): 1580< Refractoriness< 1770
• Shape: Brick
• Type: Refractory Material
• Material: Mullite
• Bulk Density(g/cm3): 0.6g/cm3
• Al2O3: 40%
• Size: Customizable
• Certifiacte: ISO9001, CE, etc
• Transport Package: Sea-Worthy Wooden Case
• Specification: 1.0-7.0mm x500x1000mm
• Trademark: jucos
• Origin: China
• Production Capacity: 50000sheets/Year

Product Description

 

Product Description

JM26 mullite insulating fire brick is a lightweight refractory material manufactured from high-purity alumina, mullite, and selected lightweight aggregates. With a bulk density of 0.6-1.0 g/cm³, it provides excellent insulation performance, reduced heat storage, and improved energy efficiency for industrial kilns and furnaces.
It is widely used as hot-face or backup lining in ceramics, metallurgy, non-ferrous, glass, and heat-treatment industries.

Features Of Mullite Insulating Brick

• Low Density (0.6-1.0 g/cm³) - significantly reduces furnace wall load and improves thermal shock resistance

• Low Thermal Conductivity - enhances energy saving and lowers fuel consumption

• Stable at High Temperatures (Up to 1260°C) - ensures long service life even under repeated heating and cooling

• High Mullite Content - provides excellent resistance against chemical corrosion and slag attack

• Smooth Surface & Accurate Dimensions - easy cutting and installation

• Environmentally Friendly, Low Iron Content - suitable for high-purity applications

Applications Of Mullite Insulating Brick

• Ceramics kilns (tunnel kilns, shuttle kilns, roller kilns)

• Heat-treatment furnaces and forging furnaces

• Non-ferrous metal melting furnaces

• Petrochemical furnaces and cracking units

• Glass annealing and backing furnaces

• Incinerators and boilers

• Hot-face and backup lining for various industrial furnaces

Advantages Of Mullite Insulating Brick

1. Efficient Energy Saving

Low thermal conductivity reduces heat loss and lowers operating energy costs.

2. Stable Mullite Structure

Ensures high resistance to deformation under high-temperature conditions.

3. Superior Thermal Shock Resistance

Suitable for kilns with frequent heating-cooling cycles.

4. Lightweight & Easy Installation

Reduces structural load and supports fast bricklaying.

5. Customizable Sizes

Standard size: 230×114×65mm
Custom sizes available according to kiln design.

Physical And Chemical Indicators For Insulating Fire Brick

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
Permanent linear change (CT x24h)%		0.6	0.6	0.8	0.9	1.01
Thermal Expansion(%) @ 1000ºC		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

FAQ

Q1: Can I get samples?
A: Yes, samples are available. We can arrange fast shipment.

Q2: What is the minimum order quantity?
A: 1 pallet or 100-500 bricks depending on the model.

Q3: Do you support customized density and size?
A: Yes, we provide tailor-made sizes and densities upon request.

Q4: Can JM26 be used as hot-face lining?
A: Yes, it is suitable for both hot-face and backup insulation applications.

Q5: How do you control quality?
A: Full inspection on density, porosity, thermal conductivity, and size.