High Temperature Resistant Magnesia Chrome Bricks are premium refractory materials specially engineered to withstand extreme thermal conditions in industrial furnaces. Made from high-purity magnesia (MgO) and chromite (Cr₂O₃), these bricks exhibit outstanding resistance to high temperatures, thermal shock, and chemical corrosion, making them ideal for critical zones such as sintering and burning areas of cement rotary kilns, steelmaking converters, and other high-temperature metallurgical furnaces.
Technical Specifications
| Item / Grade | MGe-16A | MGe-16B | MGe-12A | MGe-12B | MGe-8A | MGe-8B |
|---|---|---|---|---|---|---|
| MgO, % ≥ | 50 | 45 | 60 | 55 | 65 | 60 |
| Cr₂O₃, % ≥ | 16 | 16 | 12 | 12 | 8 | 8 |
| Apparent Porosity, % ≤ | 19 | 22 | 19 | 21 | 19 | 21 |
| Cold Crushing Strength, MPa ≥ | 35 | 25 | 35 | 30 | 35 | 30 |
| 0.2MPa Refractoriness Under Load, °C ≥ | 1650 | 1550 | 1650 | 1550 | 1650 | 1530 |
Key Features
High refractoriness under load (≥1650°C)
Exceptional resistance to thermal shock and chemical corrosion
High cold crushing strength (≥35 MPa)
Low apparent porosity (<20%) for reduced slag penetration
Suitable for harsh environments such as steelmaking converters, cement kilns, and glass furnaces
Available in standard and custom sizes to fit specific furnace lining requirements
Typical Applications
Cement rotary kiln sintering and burning zones
Electric arc furnace (EAF) and basic oxygen furnace (BOF) linings
Non-ferrous metallurgy and glass furnace linings
Other high-temperature industrial furnace components requiring enhanced acid and alkali resistance
Production Details
Our magnesia chrome bricks are manufactured using high-purity fused magnesia and carefully selected chromite materials. The production process includes:
Raw Material Selection: Premium quality magnesia and chromite are selected to ensure chemical stability.
Fine Grinding & Mixing: Materials are ground and homogenously mixed under strict control.
High Pressure Forming: Bricks are shaped by hydraulic press to achieve high density and structural integrity.
High Temperature Sintering: Bricks are fired in high-temperature kilns (over 1700°C) to enhance bond strength and reduce porosity.
Strict Quality Control: Each batch undergoes rigorous inspection to meet international standards, including chemical composition, porosity, strength, and refractoriness.
Packing and Shipping Details
Packaging: Bricks are securely packed in fumigated wooden pallets with plastic wrapping and corner protection to avoid damage during transit.
Unit Weight: Approx. 3.0–4.5 kg/brick depending on size
Shipping: We support international shipping via sea or land freight. Lead time varies based on order quantity, typically within 15–20 days.
Customized Packaging: Available upon request with customer logo and specification label.
Frequently Asked Questions (FAQ)
Q1: What temperature range can high temperature resistant magnesia chrome bricks withstand?
These bricks typically withstand continuous operating temperatures up to 1650°C or higher, making them suitable for extreme industrial furnace conditions.
Q2: What raw materials are used in these bricks?
They are primarily made from high-purity magnesia (MgO) and chromite (Cr₂O₃), ensuring excellent resistance to thermal shock and chemical corrosion.
Q3. In which industries are these bricks commonly used?
Common applications include cement rotary kilns, steelmaking furnaces (EAF, BOF), glass furnaces, and non-ferrous metallurgy.
Q4: Can you customize the sizes and shapes of these bricks?
Yes, custom sizes and shapes are available to meet specific lining requirements.
Q5: How do these bricks resist slag and chemical attack?
Yes, we provide professional technical consultation and on-site installation guidance services if needed.
