Magnesia Brick

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Introduction: Magnesia Brick is an excellent alkaline refractory material. These brick contains over *0% magnesium oxide content and adopt periclase as the principal crystalline phase. Many magnesia refractory products also contain silicate, spinel, or other ingredients. However, the properties of the main crystalline phase periclase and the behavior at high temperatures directly control the performance of magnesia refractories.
Magnesia Brick has excellent performance in superior high-temperature mechanical strength and volume stability. Magnesia Brick is mainly used in basic open-hearth furnaces for steelmaking, electric furnaces, rotary cement kilns, heating furnaces, glass furnaces, and hyperthermia tunnel kilns with properties of higher refractoriness, good basic slag erosion resistance, and high apparent initial softening temperature. Magnesia Bricks can withstand high temperatures up to ***0℃. Magnesia Bricks are widely used in the permanent lining of steel furnaces, lime kilns, glass kilns, ferroalloy furnaces, mixers, non-ferrous metal smelting furnaces, etc. They are ideal construction materials for glass kiln applications.
Magnesia bricks can generally be divided into two categories: sintered magnesia bricks and chemically bonded magnesia bricks (also known as unfired magnesia bricks). Magnesia bricks with high purity and high firing temperature become directly bonded magnesia bricks due to direct contact with periclase grains. Bricks made with fused magnesia as raw materials are called fused combined magnesia bricks. Sintered magnesia bricks are sintered at a high temperature of ***0~***0℃after crushing, batching, mixing, and forming. The sintering temperature of high-purity products is above ***0℃. Unburned magnesia bricks are made by adding the proper amount of chemical bonding agent to magnesia. They are made by mixing, molding, and drying.
  Magnesia Bricks Properties

• Magnesia bricks are generally yellowish-white in color.
• They have excellent thermal resistance and great compressive strength.
• Their chemical composition drastically differs from the chemical composition of normal bricks.
• They also contain oxides of magnesium, calcium, and potassium.
• They can withstand temperatures up to ***0 degrees Celsius.
• They have an incredible thermal capacity that helps different structures remain stable at extreme temperatures.