Insulating Fire Bricks | Shaped Refractories
IFB-29 Insulating Fire Bricks
- CUMILAG 29
1550°C
Max Service Temperature
Typical value
1.05 g/cc
Bulk Density
Typical value
0.33 W/mK
Thermal Conductivity
Typical value
3.9 MPa
Cold Crushing Strength
Typical value
57.5%
Al₂O₃ Content
Typical value
- Supplying refractories since 1980
- Dispatch from Delhi
- Same-day dispatch of standard stock items
- Pan-India & export
Technical Specification
Typical values. Exact values depend on manufacturer, formulation and applicable test standard.
Chemical Composition (Typical)
| Parameter | Value |
|---|---|
| Al₂O₃ content | 57.5% |
Physical Properties (Typical)
| Parameter | Value |
|---|---|
| Bulk density | 1.05 g/cc |
| Thermal conductivity | 0.33 W/mK |
| Cold crushing strength | 3.9 MPa |
| Max service temperature | 1550°C |
IFB-29 Datasheet
Chemical analysis, physical properties, test methods and available sizes for IFB-29 Insulating Fire Bricks, shared on request.
Key Characteristics
Taken from the IFB-29 catalogue values above.
Service temperature
Rated to 1550°C
Bulk density
1.05 g/cc
Thermal conductivity
0.33 W/mK
Crushing strength
CCS 3.9 MPa
Alumina content
57.5% Al₂O₃
Typical Applications

Applications for the insulating fire bricks range
Kilns & ceramics
High-temperature kiln hot face & backup lining (ceramic, metallurgical)
Furnaces & linings
General backup insulation behind a dense working lining
Petrochemical & fertiliser
Primary reformer & hydrogen transfer line backup (fertiliser, petrochemical); Secondary reformer cold face
Steel & iron
Blast furnace stoves; Heat treatment furnace linings & soaking pits backup
Power, boilers & incineration
High-temperature air pre-heaters (power generation)
FAQ
What is IFB-29?
IFB-29 is the 57.5% Al₂O₃ grade in our insulating fire bricks range, rated to 1550°C. Typical catalogue values: Al₂O₃ content 57.5%; bulk density 1.05 g/cc; thermal conductivity 0.33 W/mK; cold crushing strength 3.9 MPa; max service temperature 1550°C. It is also referred to as CUMILAG 29. Confirm the exact figures on the grade datasheet before specifying.
What is the alumina content of IFB-29?
IFB-29 carries 57.5% Al₂O₃.
Where is IFB-29 commonly used?
Applications for the insulating fire bricks range include high-temperature kiln hot face & backup lining (ceramic, metallurgical), general backup insulation behind a dense working lining, primary reformer & hydrogen transfer line backup (fertiliser, petrochemical), secondary reformer cold face, blast furnace stoves, high-temperature air pre-heaters (power generation) and heat treatment furnace linings & soaking pits backup. Grade selection depends on your operating conditions; send them to us and we will confirm IFB-29 or a neighbouring grade.
How do I select between IFB-28, IFB-29 and IFB-30?
IFB-28: 67.2% Al₂O₃, rated to 1540°C. IFB-29: 57.5% Al₂O₃, rated to 1550°C. IFB-30: 73.6% Al₂O₃, rated to 1650°C. Higher alumina generally brings higher refractoriness and slag resistance. Send us your application and operating temperature and we will confirm the grade.
How do I get a price for IFB-29, and how fast does it dispatch?
Send your application, operating temperature, dimensions and quantity through the quote form, WhatsApp or +91 98999 57888. Same-day dispatch of standard stock items from Delhi; other items are confirmed with the quotation. Pricing is quoted per enquiry.
Need IFB-29, or unsure between IFB-28 and IFB-30?
Send us your application, operating temperature, dimensions and quantity. Our refractory team will recommend the suitable grade and supply route.
Technical support
Grade selection from our refractory team
Manufacturer-backed
Supplied from established refractory makers
Pan-India & export
Supply across India, GCC, ASEAN and Africa
Other Insulating Fire Bricks Grades
All grades in the insulating fire bricks range.
Values are typical and compiled by Shanker Agencies Pvt. Ltd. from standard industry data and published manufacturer specifications. They are indicative, not a guarantee. Confirm the exact grade datasheet before specifying. For a certified datasheet or quotation, contact info@shankeragencies.com or +91 98999 57888.
IFB-29 Insulating Fire Bricks
1550°C · 1.05 g/cc