Hot Repairing Mix for Steel Industry
Application Industry: Refractories for Steel Industry
Application Equipment: Ladle Bottom and Sidewall Lining
Size: Pre-mixed granular hot repairing material (custom grain size and chemistry on request)
Products Overview
Our Hot Repairing Mix is a granular hot repair refractory product engineered for ladle bottom and sidewall lining service. CH Refractories can supply both carbon contained and carbon-free repairing mixes. The carbon contained repairing mix is characterized with good flowability, good adhesion, and long service life, while the carbon-free repairing mix offers more environment-friendly formulation with shorter sintering time and better flowability.
The Hot Repairing Mix product family is offered in four engineering-proven DDB chemistry grades. The CH-DDB78 grade (MgO-C based) features magnesia content minimum 78% and carbon content 5%-7% for carbon-contained ladle hot repair service. The CH-DDB65 grade (MgO based) features magnesia content minimum 65% and carbon content 5%-7% for general ladle hot repair service. The CH-DDB85 grade (MgO based) features magnesia content minimum 85% for higher-magnesia ladle hot repair. The CH-DDB92 grade (MgO based) features magnesia content minimum 92% for high-magnesia ladle hot repair service.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Hot Repairing Mix 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 high-quality magnesia and magnesia-calcia based raw materials with appropriate binding system
- Engineering-proven good flowability, good adhesion, and long service life for ladle hot repair
- Carbon contained variant features high corrosion resistance and longer service life
- Carbon-free variant offers more environment-friendly formulation with shorter sintering time and better flowability
- Four DDB chemistry grades covering magnesia content 65%-92% and carbon content 5%-7% for matching different ladle operating conditions
Product Specification
Granular hot repairing material is engineered per buyer’s ladle bottom and sidewall design. Custom chemistry and grain size available on request.
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Brands
Items
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CH-DDB78 | CH-DDB65 | CH-DDB85 | CH-DDB78 | CH-DDB92 |
|---|---|---|---|---|---|
| Materials | MgO-C based | MgO based | MgO-C based | MgO based | |
| MgO content (%) | ≥ 78 | ≥ 65 | ≥ 85 | ≥ 78 | ≥ 92 |
| C content (%) | 5~7 | 5~7 | — | 5~7 | — |
| Bulk Density (g/cm³) | ≥ 2.2 (800 °C, 0.5h) |
≥ 2.2 (800 °C, 0.5h) |
≥ 2.4 (800 °C, 0.5h) |
≥ 2.2 (800 °C, 0.5h) |
≥ 2.6 (800 °C, 0.5h) |
Note: Three performance parameters specified: MgO content, C content, and Bulk Density. DDB chemistry grades covering carbon-contained and carbon-free variants engineered for ladle bottom and sidewall hot repair service. For project-specific chemistry, contact CH Refractories engineering.
Product Applications
Hot Repairing Mix is a granular hot repair refractory product manufactured from high-quality magnesia and magnesia-calcia based raw materials with appropriate binding system, engineered for ladle bottom and sidewall hot repair service. CH Refractories can supply both carbon contained and carbon-free repairing mixes. The carbon contained repairing mix shows good flowability, good adhesion, and long service life, while the carbon-free repairing mix offers more environment-friendly formulation with shorter sintering time and better flowability.
Application Industry: Refractories for the Steel Industry and the broader Metallurgical Industry.
Target Equipment: Ladle Bottom and Sidewall Lining of small, medium-size, and large ladles in steelmaking operations.
Specific Application Zones: The CH-DDB78 grade (MgO-C based, magnesia content minimum 78%, carbon content 5%-7%) is the carbon-contained workhorse for ladle bottom and sidewall hot repair service. The CH-DDB65 grade (MgO based, magnesia content minimum 65%, carbon content 5%-7%) is the carbon-contained variant for general ladle hot repair. The CH-DDB85 grade (MgO based, magnesia content minimum 85%) is the higher-magnesia carbon-free variant for ladle hot repair. The CH-DDB92 grade (MgO based, magnesia content minimum 92%) is the high-magnesia carbon-free variant for demanding ladle hot repair service. All four grades deliver bulk density minimum 2.2 to 2.6 g/cm³ depending on grade after 800 °C firing for 0.5 hours.
CH Refractories is a Hot Repairing Mix manufacturer in China, Henan, Zhengzhou. The complete Hot Repairing Mix 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.
