BASIC BRICKS
Magnesia-based bricks resisting basic slags in BOF, EAF and cement kilns
PRODUCT OVERVIEW
Basic bricks are manufactured from magnesia (MgO), dolomite or magnesia-chrome raw materials. They exhibit excellent resistance to basic slags and iron oxide, making them essential in steelmaking converters, electric arc furnaces, and cement kiln burning zones where acidic refractories would fail rapidly.
KEY PROPERTIES
MgO Range
35 – 96%
Slag Resistance
Excellent (basic slags)
Iron Oxide Resistance
High
Max Service Temp
Up to 1800°C
Thermal Conductivity
High (for rapid heat transfer)
Environmental Note
Chrome-free grades available
APPLICATIONS
TECHNICAL SPECIFICATIONS
| Grade | MgO | SiO₂ | Bulk Density | CCS | Max Temp |
|---|---|---|---|---|---|
| Magnesia 90 | 88-92% | 3% | 2.9 g/cc | 60 MPa | 1700°C |
| Magnesia 95 | 93-96% | 2% | 3.0 g/cc | 70 MPa | 1750°C |
| Mag-Chrome | 55-65% | — | 3.2 g/cc | 50 MPa | 1800°C |
| Mag-Carbon | 75-85% | — | 2.9 g/cc | 35 MPa | 1700°C |
| Dolomite | 35-40% | — | 2.8 g/cc | 45 MPa | 1650°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
Use magnesite mortar or dry-gunning compound for basic brick joints
- 2
Keep joint thickness to absolute minimum: 1–2 mm for highest density
- 3
Mag-carbon bricks: handle in dry conditions only — avoid moisture contact
- 4
Follow steel-plant dry-out curves: 15°C/hr to 200°C, hold 24 hrs
- 5
Expansion allowances: 8–12 mm per metre of lining length
WHY BUY FROM SHANKER AGENCIES
For BOF and EAF applications we stock TRL Krosaki and CUMI mag-carbon grades with carbon contents from 10–18%. Chrome-free grades (Mag-Spinel) available for environmental compliance.
PARTNER BRANDS
QUICK INFORMATION
Max Temperature
1800°C
Category
Shaped Refractories
Grades Available
5 Standard Grades
Industries Served
Brands We Supply
• CUMI Super Refractories
• Calderys India
• TRL Krosaki
📦 Quick Delivery
Standard grades in stock — Delhi warehouse. Pan-India delivery in 2–5 days. Same-day dispatch for urgent orders ≤ 2 MT.
MORE IN SHAPED REFRACTORIES
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Economical, thermally stable bricks for general-purpose furnace linings to 1400°C
Insulating Fire Bricks (IFB)
Lightweight backup insulation reducing heat loss and energy bills
Silicon Carbide Bricks
Outstanding abrasion and wear resistance with high thermal conductivity
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.