HIGH ALUMINA BRICKS
Superior thermal stability for steel ladles, cement kilns and glass furnaces up to 1850°C
PRODUCT OVERVIEW
High alumina bricks are the workhorse of modern refractory engineering. Containing 45–99% Al₂O₃, they deliver exceptional refractoriness, corrosion resistance and load-bearing capacity at elevated temperatures. From steel ladles and cement rotary kilns to glass tank checkers and reheating furnaces, high alumina bricks are trusted wherever thermal performance cannot be compromised.
KEY PROPERTIES
Al₂O₃ Range
45 – 99%
Refractoriness
SK 33 – SK 40+
Bulk Density
2.2 – 3.1 g/cc
Thermal Shock
Good to Excellent
Slag Resistance
Moderate to High
Bond Type
Fired / Chemically bonded
APPLICATIONS
TECHNICAL SPECIFICATIONS
| Grade | Al₂O₃ | Fe₂O₃ | Porosity | CCS | PCE | Max Temp |
|---|---|---|---|---|---|---|
| HA-45 | 45-50% | 2.5% | 22-26% | 40 MPa | SK 33 | 1550°C |
| HA-55 | 53-57% | 2.2% | 21-25% | 45 MPa | SK 34 | 1610°C |
| HA-60 | 58-62% | 2.0% | 20-24% | 50 MPa | SK 35 | 1650°C |
| HA-70 | 68-72% | 1.8% | 18-22% | 55 MPa | SK 36 | 1750°C |
| HA-80 | 78-82% | 1.5% | 16-20% | 60 MPa | SK 37 | 1800°C |
| HA-90 | 88-92% | 1.0% | 14-18% | 70 MPa | SK 38 | 1850°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
Store in dry conditions, protect from moisture and contamination before use
- 2
Use matching high alumina mortar (same Al₂O₃ % as brick) for jointing
- 3
Maintain joint thickness 1.5–3 mm for optimal bond integrity
- 4
Follow controlled dry-out schedule: 20°C/hr to 110°C, hold 12 hrs, then 30°C/hr to operating temp
- 5
Apply expansion allowances: 6–8 mm per metre for silica-bonded grades, 8–10 mm for Al₂O₃ >70%
WHY BUY FROM SHANKER AGENCIES
With 45+ years of experience specifying refractories across India's steel and cement sectors, Shanker Agencies stocks all six HA grades ready-to-ship from Delhi. We supply CUMI, Calderys, TRL Krosaki and IFGL variants, matching the exact grade to your furnace design and budget.
PARTNER BRANDS
FREQUENTLY ASKED QUESTIONS
The number indicates the Al₂O₃ content. HA-45 has 45% alumina and is rated to about 1550°C, used for general-purpose linings. HA-60 and HA-70 (60% and 70% Al₂O₃) cover mid-range duty up to 1750°C. HA-80 and HA-90 are used for severe duty in steel ladles, blast furnace bosh and reformer hot zones up to 1850°C. As alumina content rises, refractoriness, slag resistance and price all rise.
QUICK INFORMATION
Max Temperature
1850°C
Category
Shaped Refractories
Grades Available
6 Standard Grades
Industries Served
Brands We Supply
• CUMI Super Refractories
• Calderys India
• TRL Krosaki
• IFGL Refractories
📦 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.
Technical Data Sheet, High Alumina Bricks
Shanker Agencies Pvt. Ltd. · Typical ValuesTypical specification ranges with the applicable test standards. Compiled by Shanker Agencies for high alumina bricks supplied across India, GCC & ASEAN.
Typical Chemical Analysis
| Property | Typical Value | Test Standard |
|---|---|---|
| Al₂O₃ | 45 – 90% | IS 1527 / ASTM C573 |
| Fe₂O₃ | 1.0 – 2.5% | IS 1527 |
| SiO₂ | Balance | IS 1527 |
Typical Physical Properties
| Property | Typical Value | Test Standard |
|---|---|---|
| Bulk Density | 2.2 – 3.1 g/cc | IS 1528 Pt-8 / ASTM C20 |
| Apparent Porosity | 14 – 26% | IS 1528 Pt-8 |
| Cold Crushing Strength | 40 – 70 MPa | IS 1528 Pt-4 / ASTM C133 |
| Refractoriness (PCE) | SK 33 – 38 | IS 1528 Pt-1 |
| RUL (Ta, 0.2 MPa) | 1400 – 1550°C | IS 1528 Pt-3 |
| Max Service Temperature | Up to 1850°C | — |
Packaging & Supply: Shrink-wrapped on pallets. Standard IS 6 / IS 8 sizes; arch, wedge, skew and special shapes to drawing.
Disclaimer: Values are typical and compiled by Shanker Agencies Pvt. Ltd. from standard industry data and published specifications of partner manufacturers (CUMI, Calderys, TRL Krosaki, IFGL, Divine Cerawool, Crown Ceramics, Mahakoshal, Saint-Gobain). They are indicative and not a guarantee, confirm the exact grade datasheet before specifying. For a certified datasheet or quotation, contact info@shankeragencies.com or +91 98999 57888.