Zirconium corundum castable
Application Industry: Refractories for Glass Industry
Application Equipment: Glass Kiln Bottom Sealing Layer, Kiln Wall Protective Layer, Upper Structure Cold Patching, Heat Patching, and Hot Repair
Size: Custom zirconium corundum castable geometry per glass kiln bottom and kiln wall design (free engineering on request)
Products Overview
Our Zirconium corundum castable is a high-performance refractory product engineered for glass kiln bottom sealing layer, kiln wall protective layer, upper structure cold patching, heat patching, and hot repair service. The product is used for cold patching and heat patching for the safety layer, the kiln wall protective layer and the upper structure of the glass kiln bottom.
The Zirconium corundum castable product family is offered in three engineering-proven AZS chemistry grades. The AZS50V grade features Al2O3 content minimum 45% and ZrO2 content minimum 29% for glass kiln bottom sealing layer on the insulation layer service, with Bulk Density minimum 3.0 g/cm3, Modulus of Rupture minimum 11.5 MPa after 110 °C drying for 24 hours and minimum 18 MPa after 1100 °C firing for 2 hours, Cold Crushing Strength minimum 85 MPa after 110 °C drying for 24 hours and minimum 100 MPa after 1100 °C firing for 2 hours, good Resistance to Glass Erosion, weak Bubble Precipitation Tendency, and Casting Water Requirement 4-5 percent. The AZS60L grade features Al2O3 content minimum 45% and ZrO2 content minimum 30% for the next layer of 50V bricks service (for the next layer of bricks above 50V), with Bulk Density minimum 2.65 g/cm3, SiO2 content maximum 18 percent, good Resistance to Glass Erosion, weak Bubble Precipitation Tendency, and Casting Water Requirement 8-10 percent. The AZS04J grade features Al2O3 content minimum 45% and ZrO2 content minimum 30% for filling gaps between surface bricks service, with Bulk Density minimum 2.8 g/cm3, SiO2 content maximum 18 percent, Modulus of Rupture minimum 12.1 MPa after 110 °C drying for 24 hours and minimum 18 MPa after 1100 °C firing for 2 hours, Cold Crushing Strength minimum 85 MPa after 110 °C drying for 24 hours and minimum 100 MPa after 1100 °C firing for 2 hours, good Resistance to Glass Erosion, weak Bubble Precipitation Tendency, and Casting Water Requirement 10-11 percent.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Zirconium corundum castable grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for Glass Industry category, or contact our technical sales team for a free consultation against your refractory drawing.
Product Features
Features:
- Manufactured from high-purity zirconium corundum raw materials with three AZS chemistry grades for matching different glass kiln service applications
- Engineering-proven good resistance to glass erosion, weak bubble precipitation tendency, and stable volume for glass kiln service
- Three AZS chemistry grades covering Al2O3 content minimum 45% and ZrO2 content minimum 29-30% for matching different glass kiln service requirements
- Bulk Density minimum 2.65 to 3.0 g/cm3 depending on grade with good volume stability
- Used for cold patching and heat patching of the safety layer, kiln wall protective layer, and upper structure of the glass kiln bottom service
Product Specification
Cold patching and heat patching for the safety layer, the kiln wall protective layer and the upper structure of the glass kiln bottom.
| Brands / Items | AZS50V | AZS60L | AZS04J | |
|---|---|---|---|---|
| Al2O3 (%) ≥ | 45 | 45 | 45 | |
| ZrO2 (%) ≥ | 29 | 30 | 30 | |
| SiO2 (%) ≤ | 20 | 18 | 18 | |
| Bulk density BD (g/cm³) ≥ | 3.0 | 2.65 | 2.8 | |
| Flexural strength MOR (MPa) ≥ | 110°C × 24h drying | 11.5 | – | 12.1 |
| 1100°C × 2h after burning | 18 | – | 18 | |
| Compressive strength CCS (MPa) ≥ | 110°C × 24h drying | 85 | – | 85 |
| 1100°C × 2h after burning | 100 | – | 100 | |
| Resistance to glass erosion | good | good | good | |
| Bubble precipitation tendency | weak | weak | weak | |
| Casting water requirement (%) | 4~5 | 8~10 | 10~11 | |
| application | kiln bottom sealing layer | for the next layer of 50v upper layer bricks | filling gaps between surface bricks | |
Note: Ten performance parameters and traits are specified per the source image: Al2O3 content, ZrO2 content, SiO2 content, Bulk density, Flexural strength, Compressive strength, Resistance to glass erosion, Bubble precipitation tendency, Casting water requirement, and application. Three AZS chemistry grades are engineered for glass kiln bottom sealing layers, protective layers, and filling surface brick gaps. For project-specific chemistry and geometry, contact CH Refractories engineering.
Product Applications
Zirconium corundum castable is a high-performance refractory product engineered for glass kiln bottom sealing layer, kiln wall protective layer, upper structure cold patching, heat patching, and hot repair service. The product is used for cold patching and heat patching for the safety layer, the kiln wall protective layer and the upper structure of the glass kiln bottom. The product family has good resistance to glass erosion, weak bubble precipitation tendency, and stable volume for glass kiln service.
Application Industry: Refractories for Glass Industry.
Target Equipment: Glass Kiln Bottom Sealing Layer, Kiln Wall Protective Layer, and Upper Structure of small, medium-size, and large glass industrial operations.
Specific Application Zones: The AZS50V grade is engineered for glass kiln bottom sealing layer on insulation layer service, with Bulk Density minimum 3.0 g/cm3, Modulus of Rupture minimum 11.5 to 18 MPa depending on curing/firing condition, Cold Crushing Strength minimum 85 to 100 MPa depending on curing/firing condition, good Resistance to Glass Erosion, weak Bubble Precipitation Tendency, and Casting Water Requirement 4-5 percent. The AZS60L grade is engineered for the next layer of 50V bricks above service, with Bulk Density minimum 2.65 g/cm3, good Resistance to Glass Erosion, weak Bubble Precipitation Tendency, and Casting Water Requirement 8-10 percent. The AZS04J grade is engineered for filling gaps between surface bricks service, with Bulk Density minimum 2.8 g/cm3, Modulus of Rupture minimum 12.1 to 18 MPa depending on curing/firing condition, Cold Crushing Strength minimum 85 to 100 MPa depending on curing/firing condition, good Resistance to Glass Erosion, weak Bubble Precipitation Tendency, and Casting Water Requirement 10-11 percent.
CH Refractories is a Zirconium corundum castable manufacturer in China, Henan, Zhengzhou. The complete Zirconium corundum 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 Glass Industry customers across the global glass value chain.
