Mullite Refractory Insulating Fire Brick Light Weight Insulation Bricks

• Refractoriness (℃): 1580< Refractoriness< 1770
• Feature: Long Time Materials, Instant Materials
• Type: Refractory Material
• Shape: Brick
• Material: Mullite
• Manufacturer: Luyang
• Model NO.: Luyang
• Name: Insulating Fire Brick
• Transport Package: Carton/Bag/Pallet
• Specification: 230x114x64mm
• Trademark: Luyang
• Origin: China
• HS Code: 69022000
• Production Capacity: 100, 000 Tons

Product Description

23 26 28 30 IFB Insulating Firebrick

Luyang Insulating Firebrick is made from high-purity refractory powder and organic fillers which burn out during manufacture to give a uniform and controlled pore sture. The brick is compressed in vacuum and sintered under high temperature. Luyang Insulating Firebrick is widely used as hot face refractory lining or back-up insulation in various kinds of industrial furnaces.

 

Features

Excellent thermal shock resistance

Accurate and customized dimension

High crushing strength

Low thermal conductivity

Low heat storage

 

Typical Applications

Metallurgy industry

Petrochemical industry

Ceramics industry

Aluminum industry

Glass industry

 

Typical Parameters

Description	GRADE 23 BRICK	GRADE 26 BRICK	GRADE 28 BRICK	GRADE 30 BRICK
Classification Temperature (ºC )	1300	1400	1500	1550
Chemical Composition (%)
Al2O3	40	56	67	73
SiO2	51	41	30	24
Fe2O3	≤1.0	≤0.8	≤0.7	≤0.6
Density (kg/m³)	600	800	900	1000
Modulus of Rupture (MPa)	0.9	1.5	1.8	2.0
Cold Crushing Strength (MPa)	1.2	2.4	2.6	3.0
Permanent Linear Change (%)	1230ºC x 24h ≤0.3	1400ºC x 24h ≤0.6	1510ºC x 24h ≤0.7	1620ºC x 24h ≤0.9
Thermal Conductivity (W/m·K)
200ºC	0.15	0.23	0.27	0.28
350ºC	0.18	0.24	0.30	0.35
400ºC	0.19	0.25	0.33	0.38
600ºC	0.23	0.27	0.38	0.40