magnesia carbon bricks specification, the following can be mentioned: Magnesite bricks have high hot strength and very good chemical resistance against alkaline materials (including steel slag). But these bricks have a high coefficient of thermal expansion and as a result low shock resistance, which has limited the use of these bricks. Also, these bricks are hydrated at a temperature of 40 to 120 degrees Celsius under the influence of air, which causes defects in the bricks. This made the storage, transportation and installation of this batch of bricks. Corrosion resistance and higher fire resistance compared to old magnesium spinel bricks in the transition zone of cement rotary kiln 1. These bricks have higher fire resistance under load (RUL) than old magnesium-spinel bricks. 2. Magnesium-spinel bricks produced with new additives have more corrosion resistance to cement kiln feed and alkaline salts than conventional bricks in the transfer area of the cement rotary kiln. 3- The degree of reaction and chemical corrosion of firebrick with cement kiln feed and alkaline salts in new magnesium-spinel bricks is less than in old bricks. According to the industry in which they are used, firebricks must pass certain standards. Considering that these bricks are generally used in harsh conditions such as inside furnaces, in addition to heat resistance, it is necessary to withstand other factors such as impact, wear, etc. Therefore, as explained below, these bricks pass a variety of tests such as: cold compressive strength test (CCS), fire resistance under load, linear change rate, apparent porosity, volume density, etc. 
insulation bricks specification
The steel industry is one of the most widely used refractory bricks. Steel industries are connected with many high temperature equipments in different stages of production. As an example, we can mention all kinds of steel melting furnaces, blast furnaces, direct reduction furnaces, rotary furnaces, etc., but in the next step, it is necessary to transfer the melt to the continuous casting machine. This transfer process should be done with the help of equipment like Patil and Tandish. Petils and Tandish have the capacity of several tons of steel. So they must be big enough. This large chamber should be made of refractory bricks in the parts in contact with the melt In addition to the furnace, other equipment such as converters, all types of molten transport equipment, etc., all require their own firebricks. In the following, some of these types of special bricks and the use of each in equipment in contact with molten steel are given. Magnesia-carbon brick These bricks are produced from the combination of pure molten magnesite and pure natural graphite. Then, while several oxygen-resistant compounds are added to them, under high pressure, the desired specific geometric shapes are given to them. The arc furnace consists of different parts such as: side wall, safety layer, bottom part, door area, lining layer and under wear and hot spots; Sintered magnesite refractory bricks and fused magnesite bricks can be used in all the mentioned parts. The recommended bricks in this case are arc furnace magnesia-carbon bricks, which are explained in detail below. magnesia carbon bricks manufacturing process 3 The production process until the quality inspection of firebricks includes six steps: crushing, mixing, shaping, drying, baking and finally inspection. Of course, in parts such as furnace ovens and in cases such as hot or cold repairs, castables and gunning equipment are used. Alumina refractory bricks can also be used in the roof of the electric arc furnace. These bricks generally have a chemical composition of about 35 to 45% alumina. The amount of iron oxide in these compounds is low and around 1%. Refractory bricks used in the arc furnace must have special characteristics.
- Low thermal conductivity and therefore good insulation performance 2. High service life, ease of use 3. Product specifications: having the necessary standards and appropriate geometric shape 4. Can be used in all kinds of furnaces with different shapes, reasonable price at the same time with high quality In addition to the electric arc furnace, magnesia carbon bricks are also very reliable and responsive in other types of furnaces.
Among these cases, the following 10 cases can be mentioned:
- Carbon combustion furnace in aluminum industry
- In the preheated areas and cyclones of the cement rotary kiln
- Insulation of glass tanks
- Types of ovens and ovens as well as pizza ovens
- Types of coke ovens
- Blast furnace
- Reheating furnace 8. Lime kilns
- Chimney
- False ceilings Magnesia chrome brick is generally used in RH furnace.
With the aim of protecting Cr2O3 from environmental pollution, low carbon magnesia (C=2~5%) is produced, which can replace chromed magnesia bricks, and the appropriate result is obtained after applying this product. 
bricks of converter is acidic or basic
iron center Consultation request Iron center, steel articles, the use of various types of bricks in the building The use of various types of bricks in the building 5 months ago No views 4388 views Steel articles The use of various types of bricks in the building 3.8/5 32 votes Was this post useful for you? 5 that was perfect 3 it was good 2 It was normal 1 it was bad Considering the increasing expansion of various types of building materials and new materials in the construction industry today, maybe at first glance, talking about the role of bricks in construction is not very important and it smells old, but it is something else. Although brick buildings have given their place to other building materials over the past years, but brick in many, varied and different forms is one of the most widely used materials in the building and its role is no less than that of beams and rebars. The most important use of bricks can be considered in the construction and direction of wall construction, where mortar is used to arrange and connect them. Many historical buildings and monuments such as fire temples, mosques, and residential buildings are built using bricks in Iran. 
According to the type and other materials used in it, the types of bricks are also used for other parts of the structures that are being built. In order to understand in which part of the building the brick is used, we must consider the types of bricks of different dimensions and then consider the use of each one in different parts of a building. The characteristic of brick has caused it to attract the attention of builders from the first stages of construction to the end. Bricks are used in various construction projects due to their greater utility and more reasonable price compared to other building materials. According to important features such as easy handling, small size, and ease of use, bricks have various uses, the most important of which can be mentioned as follows: Flooring due to proper abrasion resistance Wall covering and display due to resistance to temperature and humidity Foundation due to proper compressive strength Decorative element and building decoration