Low Carbon MgO-C Brick for Steel Industry
Application Industry: Refractories for Steel Industry
Application Equipment: Ladle Working Layer and Slag Line Lining
Size: Standard brick geometry per ladle working lining design (custom sizes available on request)
Products Overview
Our Low Carbon MgO-C Brick is a magnesia-carbon refractory brick engineered for ladle working layer and slag line lining service. The product family is manufactured from high-quality magnesite and flake graphite as main raw materials, by pressing and low temperature pre-baking. The product family is mainly used in slag zone of ladle lined with low carbon or carbon-free refractories for low and ultra-low steel production, featuring high strength, good corrosion resistance, and excellent thermal shock resistance.
The Low Carbon MgO-C Brick product family is offered in five engineering-proven MT chemistry grades. The CH-MT5A grade features magnesia content minimum 85% and carbon content maximum 5% for ladle working layer service. The CH-MT5B grade features magnesia content minimum 84% and carbon content maximum 5% for ladle working layer service. The CH-MT5C grade features magnesia content minimum 82% and carbon content maximum 5% for ladle working layer service. The CH-MT3A grade features magnesia content minimum 86% and carbon content maximum 3% for low-carbon variant. The CH-MT3B grade features magnesia content minimum 85% and carbon content maximum 3% for low-carbon variant. All five grades deliver excellent performance for ladle slag line and sidewall working layer service.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Low Carbon MgO-C Brick 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 magnesite and flake graphite as the main raw materials
- Engineering-proven pressing and low temperature pre-baking for ladle lining service
- Low carbon and carbon-free refractory formulation for low and ultra-low carbon steel production
- High strength, good corrosion resistance, and excellent thermal shock resistance
- Five MT chemistry grades covering magnesia content 82%-86% and carbon content 3%-5% for matching different low-carbon steel service
Product Specification
Low carbon MgO-C brick is engineered per buyer’s ladle working lining design. Custom chemistry and geometry available on request.
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Brands
Items
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CH-MT5A | CH-MT5B | CH-MT5C | CH-MT3A | CH-MT3B | CH-MT3C |
|---|---|---|---|---|---|---|
| MgO content (%) | ≥ 85 | ≥ 84 | ≥ 82 | ≥ 86 | ≥ 85 | ≥ 83 |
| C content (%) | ≤ 5 | ≤ 5 | ≤ 5 | ≤ 3 | ≤ 3 | ≤ 3 |
| Apparent Porosity (%) | ≥ 5 | ≥ 6 | ≥ 7 | ≥ 8 | ≥ 9 | ≥ 10 |
| Bulk Density (g/cm³) | ≥ 3.00 | ≥ 2.98 | ≥ 2.96 | ≥ 3.03 | ≥ 3.00 | ≥ 2.98 |
| Cold Crushing Strength (MPa) | ≥ 40 | ≥ 40 | ≥ 35 | ≥ 40 | ≥ 40 | ≥ 35 |
| Application | The slag line and sidewall of ladle working lining for low carbon steel production | |||||
Note: Six performance parameters specified: MgO content, C content, Apparent Porosity, Bulk Density, Cold Crushing Strength, and Application. Six MT chemistry grades engineered for ladle slag line and sidewall working layer service in low carbon and ultra-low carbon steel production. For project-specific chemistry and geometry, contact CH Refractories engineering.
Product Applications
Low Carbon MgO-C Brick is a magnesia-carbon refractory brick manufactured from high-quality magnesite and flake graphite as main raw materials, by pressing and low temperature pre-baking. The product family is mainly used in slag zone of ladle lined with low carbon or carbon-free refractories for low and ultra-low steel production. The product features high strength, good corrosion resistance, and excellent thermal shock resistance.
Application Industry: Refractories for the Steel Industry and the broader Metallurgical Industry.
Target Equipment: Ladle Slag Line and Sidewall Working Layer of small, medium-size, and large ladles in steelmaking operations.
Specific Application Zones: The CH-MT5A grade (magnesia content minimum 85%, carbon content maximum 5%) and CH-MT5B grade (magnesia content minimum 84%, carbon content maximum 5%) are the standard high-magnesia workhorses for ladle slag line and sidewall working layer. The CH-MT5C grade (magnesia content minimum 82%, carbon content maximum 5%) is the mid-magnesia variant for general ladle working layer. The CH-MT3A grade (magnesia content minimum 86%, carbon content maximum 3%) and CH-MT3B grade (magnesia content minimum 85%, carbon content maximum 3%) are the low-carbon variants specifically engineered for low and ultra-low carbon steel production. All five grades deliver apparent porosity maximum 5% to 9%, bulk density minimum 2.96 to 3.03 g/cm³, and cold crushing strength minimum 35 to 40 MPa.
CH Refractories is a Low Carbon MgO-C Brick manufacturer in China, Henan, Zhengzhou. The complete Low Carbon MgO-C Brick 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.
