Magnesia chrome bricks are basic refractory bricks in which periclase and magnesia chrome spinel are primary crystalline phases. The sintering temperature of
| 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, ℃ | ≥ | 1650 | 1550 | 1650 | 1550 | 1650 | 1530 |
Ronghua Refractory offers four types of magnesia chrome bricks, including ordinary sintered magnesia carbon bricks, directly combined magnesia chrome bricks, fused magnesia chrome bricks, and unfired magnesia chrome bricks. The above parameters are for ordinary sintered magnesia chrome bricks. If you need parameters for other types, please contact us.
Magnesia chrome bricks are mainly produced through sintering. These magnesia refractory bricks can be used in various high-temperature industrial applications. Its main components are magnesium oxide and Cr2O3. The combination of magnesium oxide and Cr2O3 gives this brick several advantages.
Magnesia chrome bricks are mainly classified into sintered magnesia chrome bricks, fused magnesia chrome bricks, and chemically bonded magnesia chrome bricks according to the production process. These high temp refractory bricks have slightly different chrome magnesite bricks properties.
Sintered magnesia chrome bricks are made by high-temperature firing of magnesia sand, chrome ore, and other raw materials. They are mainly divided into ordinary sintered magnesia chrome bricks and directly bonded magnesia chrome bricks. They have high strength and density and are commonly used in industries such as steel smelting and non-ferrous metal smelting.
Fused magnesia chrome bricks are formed by molding magnesia chrome sand after high-temperature melting in an electric arc furnace. They have high density and low porosity. And they are commonly used in industries such as glass kilns and cement kilns.
Chemically bonded magnesia chrome bricks are pressed from magnesia sand and chrome ore at low temperatures. They are characterized by low cost and easy construction. And they are applied in specific environments.
High Temperature Resistance
Magnesia chrome bricks KR Refractory offers have a refractoriness of up to 1700 degrees Celsius, with a softening temperature range between 1500-1650 degrees Celsius. They exhibit high refractoriness.
Strong Resistance to Alkali Slag Erosion
The magnesia and chromium oxide in magnesia chrome bricks have good corrosion resistance in alkaline environments. They demonstrate excellent chemical stability in alkaline slag. The chromium oxide is helpful to form a protective layer that enhances corrosion resistance.
Strong Resistance to Spalling
Magnesia chrome bricks have a strong ability to resist spalling or peeling under thermal cycling or mechanical stress. This allows them to maintain structural integrity in high-temperature mechanical conditions.
Environmental Friendliness
The raw materials for magnesia chrome bricks are sourced from natural materials. And their production process is environmentally friendly. Importantly, they can be recycled repeatedly, helping to reduce resource consumption.
Steel Metallurgy Industry
In the steel metallurgy industry, magnesia chrome refractory bricks are used for constructing blast furnaces, electric furnaces, refining furnaces, oxygen converters, high-temperature tunnel kilns, rotary kilns, heating furnaces, and so on.
Non-ferrous Metal Industry
In the non-ferrous metal industry, they are used in flash smelting furnaces, smelting furnaces and other high-temperature equipment. It is used typically in the smelting of copper, aluminum, nickel, zinc, and other metals.
Glass Industry
In the glass industry, magnesia chrome bricks are utilized in glass melting furnaces, glass regenerators, and other applications. The bricks withstands high temperatures, corrosion, thermal cycling, and other conditions during the glass manufacturing process.
Other Industries
Additionally, magnesia chrome bricks are applied in other industries such as cement, ceramics, petrochemicals. They provide reliable and durable refractory solutions for these high-temperature industries for a long-term time.
When planning to construct kilns, magnesia chrome bricks are a crucial component that involves cost and kiln design. Ronghua Refractory offers different pricing schemes based on customers’ varying needs. The main factors influencing the price include:
Quantity and Types
Prices of magnesia chrome bricks vary depending on the quantity and types chosen. Customers ordering larger quantities of the same model can benefit from greater discounts.
Manufacturing Process
Magnesia chrome bricks are produced using various manufacturing processes, each with different costs and product advantages. Customers can provide detailed requirements for us to tailor the solution accordingly. View about us to see strength.
Customization Requirements
Ronghua Refractory offers customization services for magnesia chrome bricks, including color, shape, size, raw material composition, markings, additives, and so on.
Ronghua magnesia chrome bricks are produced through a rigorous quality inspection process within a fully digitalized production system. Each brick is guaranteed to meet high product quality standards. As the original factory, Ronghua Refractory offers factory-direct pricing. What’s more, we provide customized refractory material solutions tailored to the specific requirements of your kilns. With over 20 years of experience and a team of 200+ professionals, we are dedicated to assisting you in finding the right solutions for your needs.
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