Refractory Products
Refractory Fire Brick
Fire Brick is a Durable and Reliable Staple of Refractory
If you’re wondering where to buy fire brick, look no further than RSI. We serve all industries—Heat treat, investment and die casting, manufacturing, ferrous and non-ferrous metals, cement and lime, ethanol, petrochemical—with durable, long-lasting fire brick.
Fire brick is the tried and true gold standard of refractory installations due to their excellent thermal resistance, compressive strength and versatility. Hard heat-resistant bricks form durable long-lasting structures for kilns, dryers, tunnel furnaces, boilers, furnaces and more!
Hard brick forms a durable long lasting refractory lining. Refractory fire brick is typically made from silica, alumina, and other strong materials like magnesia and zirconia. We offer Basic, Neutral, and Acid-resistant brick for petro-chem and other similar applications. Our hard offerings include many varieties of burnt brick, fust-cast brick, carbon bricks, and more. Scroll below for any insulating fire brick needs.
RSI Dense Brick Products
Our warehouse is stocked with a variety of bricks for every application. Our refractory fire brick products include:
- Burnt Brick
- Silica Bricks
- Acid Resistant Brick
- Neutral Brick
- Base Resistant Brick
- Carbon Bricks
- Fused-Cast Brick
- Magnesia Brick
Dense, heat-resistant bricks can withstand temperatures up to 3,000 degrees. The right formula of hard brick can resist acidic or basic substances. Bricks are built to be solid, reliable, and long-lasting. Our super-duty brick sets the standard for durability. We also carry soft brick for insulation.
Our stock includes a wide variety of shapes and sizes. We offer standard fire brick sizes, shapes, and dimensions, as well as custom hard brick sizes to fit your specific needs. We sell curved, wedge, and arch brick along with flat—ideal kiln furniture for any structure. Hard brick can be used as structural elements and support as well.
There are nearly endless options when it comes to brick configurations and applications. RSI can recommend and tailor fire bricks to suit your specific needs.
Insulating Fire Brick (IFB) & Soft Brick
At RSI, we also carry an array of insulating fire brick (IFB or “soft brick”) products. Our IFB has high-temperature ratings, ideally suited as an insulation layer for any hot-facing material. IFB protects the other layers of the furnace in high-temperature applications. IFB keeps the heat in the furnace rather than allowing it to dissipate.
The first thing most people notice about IFB is that it’s much lighter than ordinary fire brick. This is because it’s made of a special ceramic blend, which typically contains alumina and silica. While lower in density, it has properties that make it highly effective for furnace lining.
Insulating fire brick is:
- Low-density
- Low conductivity
- Porous
- Preventative against heat flow
In most cases, soft brick, or IFB, is used as a backup material for improving the effectiveness of a dense brick primary lining. It is also used in some heat treat applications and as a backup in aluminum processing. In addition, soft brick is often used in crematoriums and similar applications.
Soft brick usually insulates up to 2600 degrees, with a standard range of 2300-2600 degrees. At RSI, we also carry specialized high-heat soft brick that can insulate up to 3200 degrees as well.
Soft brick is lighter and easier to handle than other fire brick. They’re also very easy to cut, even by hand. These workable properties allow you to customize your IFB to fit the space. They aren’t sealed, so they can be altered cleanly and quickly. Soft brick comes in standard sizing of 9″x 4″ x 2.5″ and 9″x 4.5″ x 3, along with wedge and arch shapes. Thanks to their composition, they are easy to customize to your ideal size and shape.
Depending on application, soft brick can last multiple years. Although it’s less durable than fire brick, most IFBs offer a relatively long lifespan. Of course, soft bricks’ lifespan also depends on their environment’s chemicals and temperatures. IFB’s are great for thermal shock resistance and thermal cycling compared to other types of brick.
IFB is durable and makes functional kiln furniture and support. You can use soft brick to create structural elements within your furnace. They are also ideal for replacing single failing bricks in your furnace because they’re easy to shape and work with.
If you’re wondering what type of IFB is best for your application, reach out. We’ll discuss the durability and specific conditions of your furnace. We can help you find the right brick properties for your application.
Refractory Mortar
We carry a fully array of refractory mortar to use in all brick applications. Refractory mortar can be used in both new buildouts and furnace repairs. Due to the specialized composition of refractory mortar, it’s important to choose the right refractory mortar for furnace, refractory, and heat-treat applications.
Refractory mortar is a durable, heat-resistant blend of special ingredients like sand, cement, fireclay, and calcium aluminate. This special composition allows the refractory mortar to withstand extreme conditions for long-lasting, durable construction.
RSI is the expert in all things refractory, including mortar for large-scale brick-based construction. Our wide range of mortars are durable, reliable, and specific for refractory use.
High Alumina Tubes (Support Brackets)
Ceramic-based high alumina tubes, or support brackets, are ideal for electric melting and holding furnaces. We offer high-temperature tubes with a high max temperature resistance. These tubes are high-purity alumina, making them resistant to degradation and harsh environments.
High-purity alumina tubes provide thermal shock resistance, as well as resistance to chemical attack and degradation. Our tubes are sized for many different applications. Reach out to discuss which type might be suited for your needs.
Heating Elements
In addition to our firebrick and IFB offerings, we also offer brick supports, piers, glow bars, and other element related materials. GloBar electric heating elements generate high maximum temperatures and are available in a range of sizes and configurations depending on the furnace size.
At RSI, we specialize in helping you match your refractory brick to your application. If you’re unsure of the best refractory material options, we’re happy to guide you through them. We can also help repair refractory structures, replace bricks as needed, and help you ensure your setup is reliable, durable, and ready for work. So, reach out to RSI to explore our fire bricks for sale and installation.
