Magnesia Carbon Refractory Bricks
Ruitai Lianxin magnesia-carbon bricks (MgO-C) are non-calcinable carbonaceous refractory materials made primarily of high-purity magnesia (MgO) and flake graphite (C), with phenolic resin/asphalt as binders. Their core advantages are strong slag resistance, thermal shock stability, good thermal conductivity, and high high-temperature strength, making them the mainstream material for modern steelmaking furnace linings.
Characteristics of Magnesia Carbon Fire Brick
Magnesia carbon fire bricks’ core advantages are strong slag resistance, thermal shock stability, good thermal conductivity, and high high-temperature strength, making them the mainstream material for modern steelmaking furnace linings.
Extremely strong resistance to slag erosion
MgO resists alkaline slag; graphite is not wetted by molten slag, preventing slag penetration, resulting in a significantly longer lifespan than magnesia-chrome bricks.
Excellent thermal shock resistance
Graphite has high thermal conductivity and low expansion, relieving thermal stress and exhibiting far superior resistance to spalling compared to pure magnesia bricks.
High high-temperature strength
Carbon bonding is strengthened at high temperatures, maintaining a stable structure even at 1600℃.
Unfired process
Low-temperature heat treatment at 200–250℃ results in low cost and a short production cycle.
Application of Magnesia Carbon Fire Brick
Magnesia carbon refractory brick is mainly used for the lining of converters, AC electric arc furnaces, DC electric arc furnaces, external refining furnace and the slag line of ladles.
Magnesia Carbon Brick Technical Parameters
As a professional refractory bricks supplier, we provide you with detailed technical specifications for magnesia carbon refractory bricks to assist you in making the right choice. The following represent our standard specifications. Additionally, we offer customized refractory brick services tailored to the specific requirements of your kiln.
| MT-10A | MT-14A | MT-14B | MT-18A | MT-18B | |
| Mgo% | ≥80 | ≥76 | ≥74 | ≥72 | ≥70 |
| C% | ≥10 | ≥14 | ≥14 | ≥18 | ≥18 |
| Apparent Porosity(%) | ≤4 | ≤4 | ≤5 | ≤3 | ≤4 |
| Bulk Density(g/cm³) | ≥2.90 | ≥3.00 | ≥2.95 | ≥3.00 | ≥3.00 |
| Cold Crushing Strength(Mpa) | ≥40 | ≥40 | ≥35 | ≥40 | ≥35 |
| High temperature bending strength(1400℃×30min)Mpa | ≥6 | ≥10 | ≥8 | ≥9 | ≥7 |
Magnesia Carbon Refractory Brick Price
Ruitai Lianxin Refractory Materials Co., Ltd. is dedicated to providing global wholesale clients with highly competitive and transparently priced magnesia carbon refractory bricks. The final price of our refractory bricks is influenced by a variety of factors, including raw material costs, order volume, product specifications, packaging methods, and shipping charges. Prices may be subject to slight adjustments for custom shaped magnesia carbon bricks or expedited orders.
We invite you to contact us at any time to obtain a precise wholesale quotation and to procure high-quality refractory products at the most optimal cost.
Ruitai Lianxin Refractory Brick Manufacturing Process
Ruitai Lianxin refractory brick manufacturer consistently adheres to rigorous, standardized production processes to ensure that every refractory brick possesses consistent quality and reliable performance.
About Ruitai Lianxin
Ruitai Lianxin has more than 20 patented technologies, more than 20 corporate honors, and international certifications such as ISO. With an annual output of 300,000 tons, the company is a leader in China’s refractory industry.
As a refractory bricks manufacturer, we will provide you with factory direct prices. With more than 20 years of experience and a team of more than 200 professionals, we are committed to helping you find a solution that suits your needs.
Why Choose Ruitai Lianxin Magnesia Carbon Bricks?
Magnesia carbon bricks and other high-quality refractory bricks constitute our core product line. As a specialized refractory bricks manufacturer & supplier, we are dedicated to providing global clients with optimal kiln solutions, backed by the following core advantages:
Advantages of Factory-Direct Sales
Ruitai Lianxin is a leading refractory bricks manufacturer, operating its own dedicated facility and committed to providing global customers with factory-direct refractory bricks and high-quality wholesale services.
Rigorous Quality Control
Our refractory brick facility features advanced production lines and a professional quality inspection team that conducts rigorous testing on every batch of products to ensure compliance with international standards.
Customized Supply
We fully understand the diverse needs of industries such as non-ferrous metals, steel, cement, and glass for magnesia carbon bricks, can provide custom-sized magnesia carbon fire bricks in terms of specifications, refractoriness rating, and shape, perfectly matching your kiln and equipment requirements.
Rapid Delivery and Export-Grade Packaging
We utilize high-strength strapping bands and solid wood pallets for reinforcement, while also offering customized packaging solutions. We strictly adhere to our delivery commitments, ensuring your order is delivered on time within 20 to 30 days.
Customer Cases
As a world-renowned refractory manufacturer and exporter, our customers come from all over the world, including Kazakhstan, Uzbekistan, India, Russia, etc.The quality of our refractory bricks has won the trust of global customers and gained partners in various industries.
Cooperation Partners
As a refractory fire bricks supplier with source factory, we have many outstanding partners from all walks of life. Together with us, these partners have forged brilliant achievements and injected unlimited impetus into development.
Contact Us
If you are seeking a trustworthy manufacturer and supplier of refractory bricks—or require magnesia carbon fire bricks and wholesale refractory services—we are your ideal choice. As a direct-from-factory refractories supplier, Ruitai Lianxin offers not only highly competitive pricing but also professional customization services and comprehensive after-sales support.
Contact us today to receive a free quote and a customized refractory solution for your kiln; let us become your long-term partner in the field of refractory materials!