Different Types Of Fire Bricks

By and large, Fire Bricks are used in the manufacturing of a furnace or likewise heating system. Also known as Refractory Bricks, they are applied on the interior as well as exterior of a heat system to sustain heat and room temperature respectively. With excellent thermal resistance and a high insulating value, Fire Bricks can be used to improve the efficiency and lower the operating cost of almost all kinds of heating systems.

Types Of Fire Bricks And Their Uses

Different types of Fire Bricks are manufactured for different heating systems and each variety has specific features, advantages and disadvantages. Here are a few types of commonly sought-after Fire Bricks for various Heating Appliances:

• Clay Bricks: Usually inexpensive, Clay Bricks are used to construct outer area of a furnace. Though they are baked at high temperatures, they can still be susceptible to cracks. They have a limited capacity to withstand extremely high temperature. Thus, these Refractory Bricks are not used in the internal parts of a kiln.
• Insulation Bricks: These bricks are used in constructing the outer area of a furnace or an oven. These bricks absorb heat and prevent it from expelling in the atmosphere. Being extremely light weight, they are inexpensive as compared to its counterparts.
• Dense Bricks: Dense Bricks contain silica and alumina. These bricks are known for their durability and strength and are used to manufacture different types of ovens and furnaces which may be used for both commercial as well as domestic purposes.
• Heavy Duty Brick: Amongst the most expensive types of Fire Bricks, Heavy Duty Bricks contain around 50% alumina and can easily withstand extremely high temperatures. Generally used in large furnaces with high temperature, they are seldom used in an oven, as they tend to get heated more quickly.

It is due to the different features of various Fire Bricks that they have a number of application areas typically including aluminum and steel plants. They are also used as thermal shields in applications that involve extremely high temperature.

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