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$Magnesia Refractory Bricks$

$Magnesia Refractory Bricks$

Magnesia Refractory Bricks

Laurel’s magnesia refractory bricks are premium-grade basic refractories manufactured in our advanced magnesia brick factory using dense, sintered or fused magnesia. These high-performance bricks are designed for extreme thermal conditions and offer exceptional resistance to alkali slags, chemical corrosion, and structural deformation at temperatures exceeding 1700°C.

As one of the leading magnesia bricks suppliers in China, Laurel provides a wide range of magnesia refractory bricks with varying compositions to meet the complex needs of steelmaking, cement, and non-ferrous metal industries.

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Product Details
Table Parameters
Features
Applications
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Product Details

Applications

Application for Magnesia Bricks

Basic oxygen furnaces (BOF) and electric arc furnaces (EAF)

Cement rotary kilns and calcining zones

Regenerators and checker chambers in glass tanks

Lime kilns and dolomite processing lines

Non-ferrous metal refining and converter linings
Laurel’s magnesia refractory bricks are the go-to solution for furnace linings where chemical durability, thermal stability, and mechanical resistance are non-negotiable. As a well-established magnesia bricks supplier and magnesia brick factory, we offer certified, customizable bricks trusted across steel, cement, glass, and metallurgical sectors.

Table parameters

Item		Data
Item		M98	M97	M96		M95	M94	M91		M89
MgO	%	≥98	≥97	≥96		≥95	≥94	≥91		≥89
SiO2	%	≤0.8	≤0.8	≤1.0		≤2.0	≤2.0	≤3.0		≤3.5
CaO	%	≥0.6	≥1.0	≥2.0		≥2.0	≥2.0	≥2.0		≥2.5
Apparent porosity	%	≤18	≤18	≤18		≤18	≤18	≤18		≤18
Bulk Density	g/cm3	≥3.0	≥3.0	≥3.0		≥3.0	≥3.0	≥2.95		≥2.9
Cold Crushing Strength	MPa	≥60	≥60	≥60	≥60		≥60		≥60	≥50
Refractoriness Under Load (0.2MPa)	ºC	1700	1700	1680	1650		1650	1560		1550

Features

Features

Core Advantages of Magnesia Refractory Bricks

Superior Resistance to Basic Slags and Alkalis

Composed of ≥90% MgO, Laurel’s magnesia refractory bricks deliver stable performance in furnaces exposed to aggressive fluxes and alkaline environments.

High Thermal Endurance and Dimensional Stability

Designed to endure continuous heat loads up to 1700°C+, our magnesia refractory bricks resist creep, shrinkage, and structural fatigue in prolonged high-temperature service.

Low Porosity and High Density Structure

Manufactured in our certified magnesia brick factory, each brick features optimized density (2.85–3.10 g/cm³) and low porosity (≤18%) for minimal penetration by molten slags or gases.

Custom Composition for Industrial Use

Available in direct-bonded, electro-fused, and magnesia-carbon varieties, Laurel's magnesia bricks support a broad range of use cases and refractory design strategies.

Lifecycle Efficiency & Reusability

Thanks to their chemical durability and mechanical strength, Laurel magnesia refractory bricks are often reusable after partial service, helping reduce overall operational costs.

Applications

Steel Industry

Cement Industry

Glass Industry

Other metallurgical industries

Magnesia Refractory Bricks for Extreme Industrial Conditions

Insulation and Refractory Materials