Magnesia carbon brick is a non-burning carbon composite refractory with high melting point basic oxide magnesium oxide (melting point 2800℃) and high melting point carbon material which is difficult to be penetrated by slag as raw materials, adding various non-oxide additives and combining with carbon binder.
As a kind of composite refractory material, magnesia carbon brick effectively utilizes the strong slag resistance of magnesia and the high thermal conductivity and low expansion of carbon to compensate for the poor spalling resistance of magnesia.
(1)Good thermal shock resistance
(2)Good thermal conductiviy
(3) Strong slag resistance
(4) Good chemical stability
(5) Long service life
Metallurgical industry、chemical industry、aerospace and nuclear industry
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Item |
Index |
|||||||
|
MT-5A |
MT-8A |
MT-10A |
MT-12A |
MT-14A |
MT-16A |
MT-18A |
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|
Chemical composition/%≥ |
MgO |
85.0 |
82.0 |
80.0 |
78.0 |
76.0 |
74.0 |
72.0 |
|
C |
5.0 |
8.0 |
10.0 |
12.0 |
16.0 |
16.0 |
18.0 |
|
|
Apparent porosity/%≤ |
5.0 |
4.5 |
4.0 |
4.0 |
3.5 |
3.5 |
3.0 |
|
|
Body density（g/cm3≥） |
3.10 |
3.05 |
3.02 |
2.97 |
2.95 |
2.92 |
2.89 |
|
|
Cold pressing strength/Mpa |
50.0 |
45.0 |
40.0 |
40.0 |
38.0 |
35.0 |
35.0 |
|
|
High temperature folding strength/Mpa（1400°C ×0.5h）≥ |
6.0 |
6.0 |
10.0 |
8.0 |
10.0 |
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Highland Refractory classifies Magnesia Carbon Bricks by carbon content, functional additives, and targeted application zones to meet the diverse demands of high-temperature industrial processes for Magnesia Carbon Brick: by carbon content, they include low-carbon variants (3–8% carbon) for carbon-sensitive scenarios like aluminum reduction cells, medium-carbon types (8–12% carbon) ideal for electric arc furnace (EAF) sidewalls and steel ladle bodies, and high-carbon grades (12–20% carbon) that excel in resisting alkaline slag for converter slag lines and primary steel ladle linings; by functional additives, there are aluminum-alloyed Magnesia Carbon Bricks (enhancing thermal shock resistance for EAF roofs) and SiC-reinforced options (boosting wear resistance for tundish nozzles and copper smelting furnace linings).
Highland’s Magnesia Carbon Bricks stand out in alkaline high-temperature environments, with core strengths that make this Magnesia Carbon Brick a top choice for industrial use: they feature exceptional alkaline slag resistance (formulated with high-purity magnesia and flake graphite to reduce erosion by 40% vs. conventional refractories), ultra-high temperature stability (refractoriness ≥ 1800℃ for continuous 1650℃+ operations), superior thermal shock resistance (withstanding ≥25 cycles of 1100℃ water cooling), high mechanical strength (cold crushing strength ≥ 60MPa to support heavy loads), and energy-saving low thermal conductivity (lowering heat loss by 15–20% via graphite components).
These Magnesia Carbon Bricks are indispensable for alkaline high-temperature equipment, with Magnesia Carbon Brick applications spanning key industrial sectors: in the steel industry, they’re used for converter linings/slag lines (high-carbon grades), steel ladles (medium-carbon variants), and EAF sidewalls/roofs (aluminum-alloyed types); in the non-ferrous metals industry, low-carbon options fit aluminum reduction cells (preventing carbon contamination) and SiC-reinforced ones suit copper smelting furnaces (resisting mixed slag); in the foundry industry, high-strength Magnesia Carbon Bricks support large cast iron ladles (withstanding molten iron loads and iron oxide slag).
Magnesia Carbon Bricks (Highland) – this Magnesia Carbon Brick is formulated for harsh alkaline environments – have a core composition of MgO (≥90%) + carbon (3–20%), withstands ≥1800℃ for ultra-high temp alkaline scenarios, excels at resisting alkaline slag (e.g., steel slag), and focuses on anti-alkaline erosion + high temp stability for steel converters and non-ferrous smelting furnaces; fire clay bricks, by contrast, are made of Al₂O₃ (32–45%) + clay minerals, handle 1300–1400℃ for medium temp neutral scenarios, resist neutral/weakly acidic slag (e.g., cement clinker), and prioritize cost-effectiveness + easy workability for boiler linings and low-temp cement kiln preheaters.
Highland Refractory is your trusted partner for Magnesia Carbon Brick, with 3 unrivaled strengths that make us a leader in Magnesia Carbon Brick production: we have 30+ years of specialized expertise (tailoring formulations for aluminum smelting or steel converters), strict quality control (ISO 9001/CE/SGS certified, with rigorous testing for every batch of Magnesia Carbon Brick), and global scale + trust (60,000 tons annual capacity, 2 production bases, 1,500+ clients in 100+ countries, and 98% customer satisfaction).
Choose Highland Refractory for your Magnesia Carbon Brick needs – our Magnesia Carbon Brick solutions deliver end-to-end value that meets industrial demands: we offer customization flexibility (tailoring carbon content, additives, and shapes with 3–5 day mold turnaround for non-standard furnaces), efficient supply chains (standard grades ship in 3–7 days, bulk orders ≥500 tons get 5–10% discounts, and JIT inventory for urgent maintenance), comprehensive support (24/7 technical guidance for converter linings, 5-year warranty, free lifetime advice), and reliable logistics (shipping from Qingdao/Shanghai ports with ≤0.5% damage rate and real-time tracking for all Magnesia Carbon Brick orders).
Zhengzhou Gaoyuan Refractory Co., Ltd., a trusted refractory manufacturer with over 30 years of experience in the refractory industry, offers factory direct sales, fast delivery within 3-7 days, and exclusive bulk purchase discounts to meet the high-temperature demands of the global petrochemical, steel, cement, and glass industries. We provide over 1,500 customers worldwide with customized refractory solutions that balance performance, durability, and cost-effectiveness.
For standard orders, expect delivery in 3 - 7 days. Custom - designed bricks may take 10 - 15 days if molds are needed. For bulk orders, we'll confirm a specific schedule with you.
Each brick is wrapped in moisture - proof paper and separated by foam. They're then placed in thick plywood crates reinforced with steel straps. Labels like "Fragile" are included. The transport damage rate is ≤0.5%.
Yes, we offer free standard - shaped samples. You only pay for shipping. For custom samples, a small mold fee applies but is refunded with a bulk order.
We accept T/T and PayPal. Currently, full payment is due before shipment, but we're exploring more options.
Yes. Every batch comes with a detailed report showing raw material purity, sintering logs, and anti - slag performance.
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