Magnesia Bricks

Magnesia bricks for sale are basic refractory bricks materials whose MgO content are more than 90% and adopt periclase as the principal crystalline phase. Generally, this kind of refractory bricks can be classified into 2 types by the two bonded methods, sintered bonded and chemically bonded. The both bonded fire bricks are featured with high refractoriness, good resistance to alkaline slag, high refractories under load.

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    Magnesia Bricks for Sale Classification

    We can easily find from the magnesia bricks wikipedia, the international standard ISO 1109-1975 states that magnesium bricks are alkaline products with MgO content of more than 80%. They adopt periclase as the principal crystalline phase.

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      In the classification of magnesia bricks by the American Society of Materials and Testing Standards ASTM C 455-1984, the fire bricks are classified into three grades based on the content of MgO: 90、95、98. The corresponding minimum of MgO are 86%、91% and 96% respectively.

      According to the manufacturing process, magnesia bricks can also be classified into fired magnesia bricks, non-fired magnesia bricks and rebonded magnesia bricks.

      Magnesia bricks with high purity and high firing temperature are called direct bonded magnesium bricks due to direct contact of periclase crystals; bricks made from fused magnesia as raw materials are called fuse-rebonded magnesium bricks.

      Magnesia Bricks Properties

      For the magnesia bricks properties, the refractoriness is more than 2000℃. The refractoriness under load varies greatly depending on the melting point of the cemented phase and the amount of liquid phase generated at high temperatures. Generally speaking, the features of magnesia bricks are the following shown:

      • High Refractoriness
      • Excellentalkaline slag erosion resistance
      • High initial load softening temperature
      • Good thermal conductivity
      • High thermal expansion
      • poor thermal shock resistance

      Magnesia Bricks Uses

      Due to Magnesia Bricks’ high temperature performance and resistance to metallurgical slag. They are widely used in the following fields:

      • Iron and steel industry steelmaking linings, the ferroalloy furnaces, and mixed iron furnaces
      • Non-ferrous industrial furnaces smelt copper, lead, tin, zinc linings.
      • Building Materials Industry kiln
      • Glass industrial regenerators grids body heat exchanger
      • Refractories industrial tunnel kiln and high temperature firing kiln,etc.

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      Magnesia Bricks Specification

      Index/Item RS-MZ-91 RS-MZ-93 RS-MZ-95 RS-MZ-97
      MgO% 91 93 95 97
      SiO2%  ≤ 3.5 2.0 1.0
      CaO%  ≤ 3.0 2.0 2.0
      Cold Crushing Strength /MPa ≥ 60 60 60 60
      Apparent Porosity /%≤ 18 18 16 16
      0.2 MPa Refractoriness Under Load /  ≥ 1560 1620 1650 1700
      Reheating Linear Change (1650℃*2h)/% 0~-0.4 0~-0.4 0~-0.3 0~-0.2

      Where should I find cheaper Magnesia Bricks?

      RS Refractory Group is a professional Magnesia Bricks Manufacturer in China. “Soliciting clients in earnest, Win reputation by quality.” From the beginning, in order to win the customer’s trust and support, our company always attach great importance to friendly cooperate with customers, to ensure quality and service, and to value honor.

      Magnesia Bricks For Sale With Strong Packaging From RS Company
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        Magnesia bricks price from RS Refractory Online Sale are much cheaper than that of the other manufacturers. Apart from these bricks, RS company also sell magnesia carbon bricks, magnesia chrome bricks, magnesia aluminum bricks, magnesia spinel bricks, etc. So you can buy high quality magnesia brick series at low price here.

        Now we have professional sales team, senior professional technician and complete manufacturing and testing equipment with continuous innovation and development. Learn more information about magnesia bricks from here RS Magnesia bricks wiki website. Any question? Please Contact Us For Free Quote right now!

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