Gunning Mix for Converter and Ladle
Application Industry: Refractories for Steel Industry
Application Equipment: Converter and Ladle Cold Repair Lining
Size: Granular gunning material with 3 mm maximum critical granule (custom formulation on request)
Products Overview
Our Gunning Mix for Converter and Ladle is a granular refractory gunning product engineered for converter and ladle cold repair lining service. The main raw material is magnesia. The material shows good bonding with the body at high temperature, with the characteristics of corrosion resistance and erosion resistance, which can significantly prolong the service life of the converter and the ladle.
The Gunning Mix for Converter and Ladle product family is offered in three engineering-proven PBL chemistry grades. The PBL70 grade is the mid-magnesia variant with magnesia content 70 percent or higher and bulk density 2.3 g/cm³ or higher. The PBL80 grade has magnesia content 80 percent or higher and bulk density 2.4 g/cm³ or higher. The PBL85 grade is the high-magnesia workhorse with magnesia content 85 percent or higher and bulk density 2.5 g/cm³ or higher. All three grades deliver 3 mm critical granule and adhesive quality 85 percent or higher.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Gunning Mix for Converter and Ladle 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 magnesia as the main raw material with appropriate binding system
- Engineering-proven good bonding with the body at high temperature for converter and ladle service
- Corrosion resistance and erosion resistance for demanding converter and ladle lining conditions
- Significantly prolongs the service life of converter and ladle lining under high-temperature operating conditions
- Three PBL chemistry grades covering magnesia content 70 to 85 percent for matching different converter and ladle capacity zones
Product Specification
Granular gunning material is engineered per buyer’s converter and ladle cold repair design. Custom chemistry and grain size optimization available on request.
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Brands
Items
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PBL70 | PBL80 | PBL85 | |
|---|---|---|---|---|
| MgO content (%) | ≥ 70 | ≥ 80 | ≥ 85 | |
| Bulk Density (g/cm³) | ≥ 2.3 | ≥ 2.4 | ≥ 2.5 | |
| Flexural Strength (MPa) | 110 °C × 24h | ≥ 3 | ≥ 4 | ≥ 5 |
| 1500 °C × 3h | ≥ 6 | ≥ 6 | ≥ 7 | |
| Compressive Strength (MPa) | 110 °C × 24h | ≥ 5 | ≥ 10 | ≥ 11 |
| 1500 °C × 3h | ≥ 20 | ≥ 28 | ≥ 32 | |
| Adhesive Quality (%) | ≥ 85 | ≥ 85 | ≥ 85 | |
| Critical Granule (mm) | 3 | 3 | 3 | |
Note: Eight performance parameters specified: MgO content, Bulk Density, Flexural Strength, Compressive Strength, Adhesive Quality, and Critical Granule. Three PBL chemistry grades engineered for converter and ladle cold repair lining service. For project-specific chemistry, contact CH Refractories engineering.
Product Applications
Gunning Mix for Converter and Ladle is a granular refractory gunning product manufactured from magnesia as the main raw material with an appropriate binding system, engineered for converter and ladle cold repair lining service. The product family shows good bonding with the body at high temperature, with the characteristics of corrosion resistance and erosion resistance, which can significantly prolong the service life of the converter and the ladle.
Application Industry: Refractories for the Steel Industry and the broader Metallurgical Industry.
Target Equipment: Converter Lining and Ladle Lining of small, medium-size, and large converters and ladles in steelmaking operations.
Specific Application Zones: The PBL70 grade (magnesia content 70 percent or higher) is the mid-magnesia variant for general converter and ladle cold repair service. The PBL80 grade (magnesia content 80 percent or higher) is the high-magnesia variant for converter and ladle cold repair under standard operating conditions. The PBL85 grade (magnesia content 85 percent or higher) is the high-magnesia workhorse for demanding converter and ladle cold repair service. All three grades deliver bulk density of 2.3 to 2.5 g/cm³ depending on grade, Modulus of Rupture 3 to 5 MPa at 110 °C for 24 hours and 6 to 7 MPa at 1500 °C for 3 hours, Cold Crushing Strength 5 to 11 MPa at 110 °C for 24 hours and 20 to 32 MPa at 1500 °C for 3 hours, Adhesive Quality 85 percent or higher, and 3 mm critical granule size.
CH Refractories is a Gunning Mix for Converter and Ladle manufacturer in China, Henan, Zhengzhou. The complete Gunning Mix for Converter and Ladle 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.
