ANDALUSITE BRICKS
Volume-stable andalusite bricks that mullitise in service for stoves, reheating furnaces and kilns
PRODUCT OVERVIEW
Andalusite bricks are made from the natural mineral andalusite (Al₂SiO₅), which converts to mullite plus a siliceous phase on firing — giving 55–63% Al₂O₃ with excellent volume stability, low creep and good thermal shock resistance. They are an economical step up from fireclay where dimensional stability under thermal cycling matters. CUMI supplies andalusite grades under the CUMILITE family.
KEY PROPERTIES
Al₂O₃ Range
55 – 63%
Max Service Temp
Up to 1600°C
Bulk Density
2.4 – 2.6 g/cc
Volume Stability
Excellent (in-situ mullitisation)
Creep Resistance
Low creep
Thermal Shock
Good
APPLICATIONS
TECHNICAL SPECIFICATIONS
| Grade | Al₂O₃ | Porosity | CCS | PCE | Max Temp |
|---|---|---|---|---|---|
| A-55 | 55-58% | 15-18% | 55 MPa | SK 35 | 1550°C |
| A-60 | 60-63% | 14-17% | 70 MPa | SK 36 | 1600°C |
* Test conditions: IS 1528 (India) / ASTM C-133 / EN 1402. Values are typical — exact data sheets available on request.
AVAILABLE GRADES
INSTALLATION NOTES
- 1
Joint with andalusite or high-alumina mortar of matching grade
- 2
Maintain 2–3 mm joints and standard expansion allowance
- 3
Controlled dry-out per OEM curve to allow in-situ mullitisation
- 4
Excellent choice where bricks must hold dimension through repeated thermal cycles
WHY BUY FROM SHANKER AGENCIES
Shanker Agencies stocks CUMI CUMILITE andalusite bricks and supplies Calderys equivalents. We help select between andalusite and high-alumina based on your duty cycle and budget.
PARTNER BRANDS
FREQUENTLY ASKED QUESTIONS
Andalusite bricks are made from the natural mineral andalusite, which converts to mullite plus a siliceous phase when fired — a reaction called mullitisation. This in-situ reaction gives excellent volume stability and low creep, so the bricks hold their dimensions through repeated thermal cycles. They are an economical step up from fireclay where stability matters.
QUICK INFORMATION
Max Temperature
1600°C
Category
Shaped Refractories
Grades Available
3 Standard Grades
Industries Served
Brands We Supply
• CUMI (CUMILITE)
• Calderys
📦 Quick Delivery
Standard grades in stock — Delhi warehouse. Pan-India delivery in 2–5 days. Same-day dispatch for urgent orders ≤ 2 MT.
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READY TO ORDER OR NEED A SAMPLE?
Our engineers can recommend the exact grade for your application. Sample kits available for trials. No minimum order on standard grades.