Aluminum-magnesium castable
Application Industry: Refractories for Steel Industry
Application Equipment: Ladle and Hot Metal Ladle High Temperature Furnace Lining
Size: Custom aluminum-magnesium castable geometry per ladle and high temperature furnace design (free engineering on request)
Products Overview
Our Aluminum-magnesium castable is a high-performance refractory product engineered for ladle and hot metal ladle high temperature furnace lining service. The product family is mainly prepared from raw materials such as corundum, magnesia, and spinel. The material has the characteristics of high temperature strength, corrosion resistance, and good thermal shock resistance, mainly used for the lining of high temperature furnaces such as ladle and hot metal ladle, with stable performance and long service life.
The Aluminum-magnesium castable product family is offered in three engineering-proven LMJZ chemistry grades. The LMJZ90 grade features Al2O3+MgO content minimum 90% for high-demand ladle and high temperature furnace lining service. The LMJZ85 grade features Al2O3+MgO content minimum 85% for higher-demand ladle and high temperature furnace lining service. The LMJZ80 grade features Al2O3+MgO content minimum 80% for general ladle and high temperature furnace lining service. All three grades deliver Bulk Density minimum 2.8 to 2.9 g/cm3 after 110 °C curing for 24 hours, Cold Crushing Strength minimum 30 MPa after 110 °C curing for 24 hours and minimum 60 MPa after 1500 °C firing for 3 hours, and Permanent Linear Change 0 to +1.2 percent after 1500 °C firing for 3 hours.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Aluminum-magnesium castable grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for the Steel Industry category, or contact our technical sales team for a free consultation against your refractory drawing.
Product Features
Features:
- Manufactured from corundum, magnesia, and spinel as main raw materials with high temperature casting process
- Engineering-proven high temperature strength, good corrosion resistance, and excellent thermal shock resistance for ladle lining service
- Designed for ladle and hot metal ladle high temperature furnace inner lining service with stable performance
- Three LMJZ chemistry grades covering Al2O3+MgO content 80%-90% for matching different ladle and high temperature furnace service requirements
- Bulk Density minimum 2.8 to 2.9 g/cm3, Cold Crushing Strength minimum 30 MPa after 110 °C curing and minimum 60 MPa after 1500 °C firing
Product Specification
The aluminum-magnesium castables are mainly prepared from raw materials such as corundum, magnesia and spinel. The material has the characteristics of high temperature strength, corrosion resistance and good thermal shock resistance. Mainly used for the lining of high temperature kiln such as ladle.
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Brands
Items
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LMJZ90 | LMJZ85 | LMJZ80 |
|---|---|---|---|
| Al2O3+MgO (%) | ≥ 90 | ≥ 85 | ≥ 80 |
| Bulk density (g/cm³) | ≥ 2.9 (110 °C, 24h) |
≥ 2.85 (110 °C, 24h) |
≥ 2.8 (110 °C, 24h) |
| Compressive strength (MPa) | ≥ 30 (110 °C, 24h) |
≥ 30 (110 °C, 24h) |
≥ 30 (110 °C, 24h) |
| ≥ 60 (1500 °C, 3h) |
≥ 60 (1500 °C, 3h) |
≥ 60 (1500 °C, 3h) |
|
| Permanent linear change (%) | 0~+1.2 (1500 °C, 3h) |
0~+1.2 (1500 °C, 3h) |
0~+1.2 (1500 °C, 3h) |
Note: Four performance parameters specified: Al2O3+MgO content, Bulk density, Compressive strength, and Permanent linear change. Three LMJZ chemistry grades engineered for ladle and hot metal ladle high temperature furnace lining service. For project-specific chemistry and geometry, contact CH Refractories engineering.
Product Applications
Aluminum-magnesium castable is a high-performance refractory product manufactured from corundum, magnesia, and spinel as main raw materials with high temperature casting process, engineered for ladle and hot metal ladle high temperature furnace lining service. The material has the characteristics of high temperature strength, corrosion resistance, and good thermal shock resistance, mainly used for the lining of high temperature furnaces such as ladle and hot metal ladle, with stable performance and long service life.
Application Industry: Refractories for the Steel Industry and the broader Metallurgical Industry.
Target Equipment: Ladle and Hot Metal Ladle High Temperature Furnace of small, medium-size, and large ladles in steelmaking operations.
Specific Application Zones: The LMJZ90 grade (Al2O3+MgO content minimum 90%) is the standard variant for high-demand ladle and high temperature furnace lining service. The LMJZ85 grade (Al2O3+MgO content minimum 85%) is the higher-demand variant for ladle and high temperature furnace lining service. The LMJZ80 grade (Al2O3+MgO content minimum 80%) is the general variant for ladle and high temperature furnace lining service. All three grades deliver Bulk Density minimum 2.8 to 2.9 g/cm3 after 110 °C curing for 24 hours, Cold Crushing Strength minimum 30 MPa after 110 °C curing for 24 hours and minimum 60 MPa after 1500 °C firing for 3 hours, and Permanent Linear Change 0 to +1.2 percent after 1500 °C firing for 3 hours.
CH Refractories is an Aluminum-magnesium castable manufacturer in China, Henan, Zhengzhou. The complete Aluminum-magnesium castable product family is manufactured in our Xinmi City, Zhengzhou, Henan, China facility to ASTM, GB/T, and ISO refractory standards. Each batch is supported by free consultation, on-site technical support, and a dedicated engineering team serving Refractories for the Steel Industry customers across the global iron and steel value chain.
