Shaped Refractories / Insulating Fire Bricks
IFB-28 Insulating Fire Bricks
IFB-28 is the 55% Al₂O₃ grade in Shanker Agencies’ insulating fire bricks range, rated for continuous service to 1540°C.
IFB-28 technical specification
Typical values for IFB-28 insulating fire bricks. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.
| Property | IFB-28 |
|---|---|
| Al₂O₃ content | 55% |
| Bulk density | 0.90 g/cc |
| Thermal conductivity | 0.25 W/mK |
| Cold crushing strength | 3.0 MPa |
| Max service temperature | 1540°C |
Grade designations and equivalents
How IFB-28 is referenced across Indian and export naming conventions.
| SAPL grade code | IFB-28 |
| Indian trade names | 28% alumina |
| Alumina content | 55% Al₂O₃ |
| Max service temperature | 1540°C |
Where IFB-28 is used
Full insulating fire bricks range
Compare IFB-28 against every grade SAPL stocks in this family.
Installation notes
- 1Handle with care, lower crushing strength than dense bricks
- 2Use lightweight insulating mortar or colloidal silica bonded mortar
- 3Never expose directly to liquid metal or slag, always use with working lining
- 4Dry-out schedule: ambient to 200°C at 10°C/hr, hold 4 hrs, then proceed slowly
Disclaimer: 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.