Light Weight Fireclay Insulating Fire Brick 1250c Refractory Furnace Insulation

• Customization: Available
• Classification: Clay
• Feature: Good Mechanical Strength, Good Thermal Insulation Performance, High-Temperature Resistant, Light Weight, Low Thermal Conductivity, Long Time Materials
• Model NO.: B1, B2, B3, B4
• Production Process: Extrusion Method
• Refractoriness (℃): 1580< Refractoriness< 1770
• Shape: Brick
• Type: Refractory Material
• Material: Alumina Block
• Size: Customizable
• Certifiacte: ISO9001, CE, etc
• Bulk Density: 0.6-1.25
• Cold Crushing Strength: 1.0-10MPa
• Thermal Conductivity: 0.17-0.51
• Transport Package: Sea-Worthy Wooden Pallet
• Specification: 230*114*64mm or 230*114*76mm
• Trademark: jucos
• Origin: China
• HS Code: 6902200000
• Production Capacity: 20000mt/Year
• Package Size: 110.00cm * 110.00cm * 100.00cm
• Package Gross Weight: 800.000kg

Product Description

Product Description

Insulation Fireclay Brick is a lightweight refractory insulation material designed for high temperature industrial applications. It is manufactured from high purity fireclay raw materials and processed under controlled firing conditions to achieve excellent thermal insulation performance and structural stability.

This type of insulation brick features low thermal conductivity, good thermal shock resistance, and stable volume at high temperatures, making it an ideal solution for energy saving furnace lining systems. It is widely used in industrial kilns, boilers, furnaces, and other thermal equipment where heat retention and energy efficiency are critical.

Compared with dense refractory bricks, fireclay insulation bricks significantly reduce heat loss and improve overall furnace efficiency while maintaining sufficient mechanical strength for lining support. The material is easy to cut, install, and maintain, making it suitable for both new construction and repair projects.

Features

Low thermal conductivity for excellent insulation performance
Lightweight structure for reduced furnace load
High temperature resistance for industrial heating environments
Good thermal shock resistance and volume stability
Easy installation and machining

Applications

Industrial kiln lining systems
Boiler thermal insulation
Furnace backup insulation layers
Steel and metallurgy heating equipment
Cement and ceramic production kilns

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

Q1: What is insulation fireclay brick used for?
It is used for thermal insulation in high-temperature industrial furnaces, kilns, and boilers to reduce heat loss and improve energy efficiency.

 
Q2: What is the maximum working temperature?
Fireclay insulation bricks can typically withstand high temperatures up to industrial furnace operating conditions, suitable for kiln and boiler insulation layers.

 
Q3: What are the main advantages of insulation fireclay bricks?
They offer low thermal conductivity, lightweight structure, good thermal stability, and easy installation for furnace lining systems.

 
Q4: Where are they commonly applied?
They are widely used in industrial kilns, boilers, cement plants, steel plants, ceramic furnaces, and other high-temperature equipment.

 
Q5: Are insulation fireclay bricks easy to install?
Yes, they are easy to cut, shape, and install, making them suitable for both new furnace construction and maintenance projects.

 
Q6: What is the difference between insulation fireclay bricks and dense refractory bricks?
Insulation bricks focus on heat retention and energy saving, while dense bricks focus more on strength and direct hot-face resistance.