Shaped Refractories / Basic Bricks
Magnesia 90 Basic Bricks
Magnesia 90 is the 88-92% MgO grade in Shanker Agencies’ basic bricks range, rated for continuous service to 1700°C.
Magnesia 90 technical specification
Typical values for Magnesia 90 basic bricks. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.
| Property | Magnesia 90 |
|---|---|
| MgO content | 88-92% |
| SiO₂ content | 3% |
| Bulk density | 2.9 g/cc |
| Cold crushing strength | 60 MPa |
| Max service temperature | 1700°C |
Grade designations and equivalents
How Magnesia 90 is referenced across Indian and export naming conventions.
| SAPL grade code | Magnesia 90 |
| Max service temperature | 1700°C |
Where Magnesia 90 is used
Full basic bricks range
Compare Magnesia 90 against every grade SAPL stocks in this family.
| Grade | MgO content | SiO₂ content | Bulk density | Cold crushing strength | Max service temperature |
|---|---|---|---|---|---|
| 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 |
Installation notes
- 1Use magnesite mortar or dry-gunning compound for basic brick joints
- 2Keep joint thickness to absolute minimum: 1–2 mm for highest density
- 3Mag-carbon bricks: handle in dry conditions only, avoid moisture contact
- 4Follow steel-plant dry-out curves: 15°C/hr to 200°C, hold 24 hrs
- 5Expansion allowances: 8–12 mm per metre of lining length
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.