Magnesia Brick
Magnesia brick with periclase as the main phase (MgO≥95%, refractoriness ≥2000℃) offers outstanding resistance to basic slags and iron-oxide slag plus excellent high-temperature performance.
MgO Content≥95%
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Magnesia-Alumina Spinel Brick
Magnesia-alumina spinel brick (MgO≥88%, Al₂O₃ 6-10%) is a chrome-free, environmentally friendly alternative to magnesia-chrome. Thermal-shock stability ≥8 cycles, resistant to cement clinker and alkali condensation.
Technical Data
| MgO Content | ≥88% |
|---|---|
| Al₂O₃ Content | 6-10% |
| Thermal Shock | ≥ 8 cycles |
| CCS | ≥50 MPa |
Description
Magnesia-Alumina Spinel Brick
Material System & Positioning
Magnesia-alumina spinel bricks are chrome-free basic refractories with MgO ≥88%, Al₂O₃ 6-10%, thermal shock stability ≥8 cycles and CCS ≥50 MPa. Balanced thermal shock and spalling resistance, resistance to cement clinker attack and alkali salt condensation make them the mainstream chrome-free choice for cement kiln burning/transition zones. It is Henan Songrui's core eco-grade.
Key Performance
- Chrome-free: replaces magnesia-chrome without chromium risk.
- Clinker resistance: withstands clinker attack and alkali condensation.
- Balanced shock/spalling resistance.
- Co-processing suitable: fits waste co-processing cement kilns.
Applications
- Cement: burning and transition zones, kiln hoods.
- Lime: hot zones.
- Non-ferrous: basic zones of smelting furnaces.
Selection Advice
The mainstream chrome-free alternative as environmental rules tighten; select MgO/Al₂O₃ ratio by kiln type, fuel and raw mix. Lay with magnesia-alumina mortar.
Installation & Maintenance
Lay with matching mortar, tight joints; heat up steadily to promote coating. Selection and installation guidance available.
Quality Assurance
Henan Songrui New Refractory Materials Co., Ltd. (Xuanhua Town Industrial Park, Henan) is a 2024 Class A taxpayer and SRDI SME. For selection, quotation or installation, contact Manager Zheng (17513376789 / 17513376789@163.com).
Key Features
- Chrome-free spinel brick as eco-friendly magnesia-chrome alternative
- Resists cement clinker and alkali-salt condensation
- Balanced thermal-shock and spalling resistance
- Main choice for cement burning and transition zones
- Suitable for cement kilns co-processing waste
- Use with magnesia-alumina mortar
Typical Applications
Magnesia-spinel brick balances thermal shock and slag resistance, chrome-free:
- Cement: rotary kiln burning and transition zones (chrome-free alternative to mag-chrome).
- Steel & Iron: ladle permanent layers, EAF walls.
- Non-ferrous: copper smelting furnace linings.
- Advantage: service up to 1700℃, chrome-free and environmentally safe, better thermal shock resistance than mag-chrome.
FAQs
Magnesia-spinel vs mag-chrome brick?
Magnesia-spinel is chrome-free with better thermal shock resistance—the preferred cement kiln choice; mag-chrome resists slag better but carries environmental risk.
Cement kiln use?
Burning and transition zones, replacing mag-chrome for environmental compliance.
Temperature rating?
About 1700℃, meeting cement burning zone requirements.
Quotation & Custom Inquiry
Submit an inquiry or custom requirement for this product; reply within 24 hours
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