Products
Magnesia Brick
• Density: 2.85–3.10 g/cm³
• Raw Material: Fused Magnesia / Sintered Magnesia
• Firing temperature: 1600 – 1800℃
• Softening temperature under load: 1550 – 1700℃
• Function: Refractory Lining, Slag Resistance, Thermal Insulation, High-Temperature Protection, Furnace Service Life Extension
Product Introduction
Magnesia Brick is a high-performance basic refractory material manufactured from high-purity magnesia clinker, with an MgO content typically exceeding 90%. Periclase serves as the main crystalline phase, providing excellent refractoriness, slag resistance, and high-temperature stability.
According to the manufacturing process, magnesia bricks can be divided into:
- Sintered Magnesia Bricks (Fired Magnesia Bricks)
- Chemically Bonded Magnesia Bricks (Unfired Magnesia Bricks)
Features
- High refractoriness and load-bearing capacity
- Excellent resistance to alkaline slag corrosion
- Superior thermal stability
- Good mechanical strength at high temperatures
- Long service life in severe operating conditions
Applications
Magnesia bricks are widely used in high-temperature industrial furnaces, including:
- Steel-making converters and electric arc furnaces
- Furnace hearths and sidewalls
- Permanent linings of oxygen converters
- Non-ferrous metal smelting furnaces
- Cement rotary kilns
- Glass furnace regenerators and checker chambers
- High-temperature tunnel kilns
- Lime and magnesia calcining kilns
JIUHUA GROUP supplies high-quality magnesia bricks in various specifications to meet different industrial requirements. Contact us today for technical support, product details, and a competitive quotation.
Technical Data:
| Index/Item | JH-MZ-91 | JH-MZ-93 | JH-MZ-95 | JH-MZ-97 |
| MgO% ≥ | 91 | 93 | 95 | 97 |
| SiO2% ≤ | – | 3.5 | 2.0 | 1.0 |
| CaO% ≤ | 3.0 | 2.0 | 2.0 | – |
| Cold Crushing Strength /MPa≥ | 60 | 60 | 60 | 60 |
| Apparent Porosity /%≤ | 18 | 18 | 16 | 16 |
| 0.2 MPa Refractoriness Under Load / ≥ | 1560 | 1620 | 1650 | 1700 |
| Reheating Linear Change (1650℃*2h)/% | 0~-0.4 | 0~-0.4 | 0~-0.3 | 0~-0.2 |
Shape & Size Of Magnesia Brick:
| Straight | Split | Arch | Wedge | Tile | Other Shape |
| L×W×H(mm) | L×W×H (mm) | L×W×H/h(mm) | L×W×H/h (mm) | L×W×H (mm) | Key brick, |
| 230×114×65 | 230×114×25 | 230×114×65/45 | 230×114×65/45 | 230×230×38 | Skew brick, |
| 230×114×75 | 230×114×32 | 230×114×65/55 | 230×114×65/55 | 230×230×50 | Soap, |
| 230×114×37 | 230×114×75/45 | 220×114×75/45 | 230×230×65 | Checker, | |
| 230×114×50 | 230×114×75/55 | 220×114×75/55 | 230×230×75 | Neck, | |
| 230×114×75/65 | 220×114×75/65 | Taper, | |||
| We also can make brick according to customers’ drawing and requirements. | |||||
