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Brick: Dense/Insulating

Each type is formulated to meet specific thermal and physical requirements, and after firing is inspected to ensure precise tolerances. Made from high purity refractory clays and other ceramic raw materials, Fire Brick Engineers is diligent to supply only quality manufactured dense and insulating firebrick. 

Types of Dense Brick

4x6 350TR19 Blue RGB

Fireclay - Super Duty and High Duty

Fireclay brick are composed of high quality flint clays and plastic fireclays. They are uniform in size and are volume stable at higher temperatures. The super duty brands offer excellent spalling resistance and the high duty products provide cost-effective alternatives for a variety of applications. High firing of both types of fireclay brick improves hot strengths, resistance to carbon monoxide attack and disintegration.

High Alumina - General

The general purpose family of high alumina brick are based on refractory grade bauxite and very high quality calcined flint clays. Their alumina contents range from 60% to 80% and they are typically highly refractory and especially thermal shock resistant. These cost-effective products are exceptionally versatile and have been quite successful in numerous applications.

High Alumina - High Strength

High strength, high alumina brick are phosphate-bonded fired products. They are made with highly refractory calcined ingredients including high purity alumina, refractory grade bauxite, bauxitic clays and high purity flint clays. The aluminum phosphate bond develops high strength without sacrificing thermal shock resistance. It enhances load-bearing behavior as well as resistance to abrasion, erosion and mechanical abuse. These phosphate-bonded brick are also especially resistant to attack by alkali and molten aluminum Their uniformity of size and structure results from a highly controlled production process.

High Alumina - Ladle

This family of high alumina brick was designed especially for steel ladle applications. Similar to conventional high alumina brick, this line is based on refractory grade bauxite and very high quality calcined flint clay. Matrix compositions are formed for higher alumina content and lower porosity, resulting in maximum corrosion resistance. These product are also higher purity, denser, less porous, stronger and more hot load resistant than their conventional counterparts. They should be specified whenever upgraded quality is necessary in the 50% to 80% alumina range.

High Alumina - Special

Special high alumina brick are based on tabular alumina, or refractory grade bauxite. These high purity, high alumina (85% plus) products are designed to withstand the most severe operating conditions. Each has a unique matrix composition developed to maximize service life for its specific application. It is a tabular alumina based product with a mullite matrix. It is highly refractory and with low porosity and permeability, very resistant to slag corrosion and penetration. This quality offers unexcelled dimensional stability and is extremely resistant to thermal spalling. It has good hot strength and is very abrasion/erosion resistant. Tabular alumina is the ideal choice for molten metal impingement areas in steel ladles and for the working linings of coreless and channel induction furnaces. It is well suited for specialized petrochemical applications including carbon black furnaces, chemical and waste incinerators and sulfur recovery units.

High Alumina - Creep Resistant

The creep resistant brick are high purity, low alkall products based on high purity aluminas, calcined bauxitic kaolins and high grade andalusite. Designed originally for use in blast furnaces and blast furnace stoves due to their creep behavior and carbon monoxide resistance, several of these product , have also flourished in other markets including glass furnace regenerators and carbon anode baking furnaces. When produced as blast furnace checker brick, these products are formed on special presses to develop optimal properties.

Insulating Brick

Bricks IMG 9408 Blue RGB

Fire Brick Engineers offers 13 types of Insulating Fire Brick (IFB) for use in applications from 2300 °F (1260°C) to 3200°F (1760°C). Insulating Fire Brick is made from high purity refractory clays and other ceramic raw materials. 

  • High Insulating Value. The light weight and high insulating value of IFB make possible thinner furnace walls, improved efficiency and lower operating costs.
  • Strong. The high compressive strength of IFB allows for self­-supporting structures at elevated temperatures. IFB are compatible with dense fire brick, and add strength to the entire construction.
  • Low Heat Storage. Lower heat storage versus dense brick means reduced fuel costs and faster heat­ups in cyclically operated heating equipment.
  • High Purity. IFB are low in impurities such as iron, which can adversely affect refractory performance in many applications. They are used in many furnaces with controlled atmospheres. 

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