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Refractory brick FAQ

[vc_row][vc_column][vc_tta_tabs][vc_tta_section title=”1″ tab_id=”1585534133325-3c5eefc4-45a3″][vc_toggle title=”Magnesia-carbon brick. What’s it for?”]Magnesia-carbon brick is made of high melting point alkaline oxide magnesium oxide (melting point 2800°C) and carbon material with high melting point which is difficult to be penetrated by slag. Carbon – free composite refractories made of carbonaceous binder.

Carbon brick magnesium-carbon refractory was developed by the United States in the mid-1960s. In the 1970s, the steel industry in Japan began to use magnesium-carbon brick in water-cooled electric arc furnace. Magnesium-carbon bricks are now used in large quantities to make steel around the world.[/vc_toggle][vc_toggle title=”Distinction between magnesia carbon brick and magnesia chrome brick ?”]Magnesia-carbon brick is made of high melting point alkaline oxide magnesium oxide (melting point 280 magnesia-carbon brick is made of high melting point alkaline oxide magnesium oxide (melting point 2800°C) and carbon material with high melting point which is difficult to be infiltrated by slag as raw material. Carbon – free composite refractories made of carbonaceous binder.

Magnesia chrome brick with magnesium oxide (MgO) and chromium trioxide (Cr2O3) as the main components, magnesite and spinel as the main mineral components of refractory products. This kind of brick has high fire resistance, high temperature strength, strong resistance to alkaline slag erosion, good thermal stability, and also has – definite adaptability to acid slag. The main raw materials for making magnesia chrome bricks are sintered magnesia and chromite.[/vc_toggle][vc_toggle title=”What is refractory brick made of?”]Kiln bricks are made by firing a clay based composition in the kiln until it is partly vitrified, and for special purposes may also be glazed. Refractory bricks usually contain 30-40% alumina and the primary raw material is usually chamotte with other materials.[/vc_toggle][vc_toggle title=”What is the criterion for making refractory bricks?”]A refractory brick is built primarily to withstand high temperature, but will also usually have a low thermal conductivity for greater energy efficiency.[/vc_toggle][vc_toggle title=”How many types of refractory bricks are there?”]There are mainly three varieties of refractory bricks.[/vc_toggle][vc_toggle title=”What temperature can bricks withstand?”]Medium-grade fire brick is the most heat resistant and ideal for a brick oven, reaching top temperatures of around 900 degrees F. Fire bricks are strong and won’t crack under the pressure of constant heating and cooling, making them perfect for use in ovens.[/vc_toggle][/vc_tta_section][vc_tta_section title=”2″ tab_id=”1585534133340-ae8f390e-7f62″][/vc_tta_section][/vc_tta_tabs][/vc_column][/vc_row]

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As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally. 

Our product  have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time.

LMM Main product series

Core technology products:

  • magnesia carbon brick
  • slide gate plate
  • graphite electrode

Core technology products:

  • Hss roller
  • cast steel rolls
  • tungten carbide ring roller

Core technology products:

  • copper mould tube
  • copper mould plate
  • assembly & cooling jackts

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