Fireclay Bricks
AL-40 Fireclay Bricks
AL-40 is the 40% min Al₂O₃ grade in Shanker Agencies’ fireclay bricks range, rated for continuous service to 1200°C.
40% minAl₂O₃ content
1200°CMax service temperature
30 MPa minCold crushing strength
2.10 g/ccBulk density
AL-40 Technical Specification
| Property | Value |
|---|---|
| Al₂O₃ content | 40% min |
| Fe₂O₃ content | 3.0% max |
| Bulk density | 2.10 g/cc |
| Apparent porosity | 23% max |
| Cold crushing strength | 30 MPa min |
| Refractoriness under load (RUL) | 1300°C min |
| Thermal conductivity | 1.5 W/mK max @1000°C |
| Max service temperature | 1200°C |
| Standard Size | 230 × 115 × 75 mm |
Typical values for AL-40 fireclay bricks. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.
Is AL-40 right for your application?
- Rated for continuous service up to 1200°C.
- Also meets SK 30, SK 32 requirements. Those are lower duties, so a lighter grade may be the more economical choice.
Technical Data Sheet
Chemical analysis, physical properties, test methods and available sizes for AL-40 Fireclay Bricks, shared on request.
Where AL-40 Is Used
Typical applications for AL-40 fireclay bricks.
Boilers
Boiler back walls & settings
Industrial Furnaces
General industrial furnace linings
Kilns
Kiln car superstructures
Incinerators
Waste incinerator linings
Backup Linings
Backup linings behind working lining
Soaking Pits
Soaking pit walls
Illustrative plant photos via Wikimedia Commons (CC BY / CC BY-SA / public domain). Photo credits
Compare AL-40 with Other Grades
AL-40 against the other 4 grades in the fireclay bricks range.
Swipe table to see all columns
| Grade | Al₂O₃ content | Fe₂O₃ content | Bulk density | Apparent porosity | Cold crushing strength | Refractoriness under load (RUL) | Thermal conductivity | Max service temperature |
|---|---|---|---|---|---|---|---|---|
| AL-28 | 26-30% | 2.5% | — | 24-28% | 20 MPa | — | — | — |
| AL-30 | 28-30% | 2.5% | — | 22-26% | 25 MPa | — | — | — |
| AL-32 | 30-34% | 2.0% | — | 22-26% | 28 MPa | — | — | — |
| AL-35 | 35% (nominal) | 2.5% max | 2.1-2.2 g/cc | 22-25% | 25-29 MPa | — | — | 1200°C |
| AL-40this grade | 40% min | 3.0% max | 2.10 g/cc | 23% max | 30 MPa min | 1300°C min | 1.5 W/mK max @1000°C | 1200°C |
Technical Resources
Why Buy from Shanker Agencies?
More than 45 years of experience supplying refractory solutions to industries across India and worldwide.
45+ Years
Refractory experience since 1980
Technical Selection
Application-based grade guidance
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From established refractory manufacturers
Documentation
Technical data available on request
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Supply support across markets
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.
Need AL-40 or help choosing a grade?
Send the drawing, dimensions, application and quantity for AL-40 fireclay bricks. Our technical team reviews the requirement and advises on grade and fulfilment 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 Fireclay Bricks Grades
All grades in the fireclay bricks range.
AL-40 Fireclay Bricks
40% min · 1200°C