Foundry Service & Supplies, Inc.

United States

temp boards are inorganic, incombustible Calcium Silicate structural insulation boards. They feature a xonalite structure that results in exceptional strength and extremely low water of hydration. The materials are composed primarily of lime, silica, and reinforcing fibers. The product is white, essentially dust-free, and contains no asbestos. Ultratemp is available in thicknesses from 12" to 3" in 48" x 96" sheets, or cut-to-size as needed. Ultratemp materials should be specified when the following properties are required:Thermal shock resistance and stabilityConsistently low thermal conductivityHigh structural strength at elevated temperaturesIncombustibleElectrical insulating properties when dryEasily machinableInsoluble in water and non-corroding

Marinite structural insulations are monolithic, incombustible and non-asbestos, and are available in several compositions and densities. Composed of Tobermorite calcium silicate, Marinite is available in thicknesses ranging from 14" to 3" and are easily fabricated from 48 x 96 sheets. The diverse selection of boards are produced by chemically reacting formulations of silica, lime, and reinforcing fibers followed by hydraulic pressure and various forms of curing and heat treating. The resultant boards exhibit the following properties:Thermal shock resistance and stabilityConsistently low thermal conductivity High structural strength at elevated temperatures Incombustible Electrical insulating properties when dry Easily machinable Insoluble in water and non-corroding

Foundry Service supplies Hard "Super Duty" and "Medium Duty" Fire Bricks that are rated for superior strength in applications of over 3000F (1650C). They exhibit low shrinkage, excellent thermal shock resistance, and good resistance to alkali and carbon monoxide disintegration.

Foundry Service offers Porous Alumina compositions from 88% to 99.7% alumina content. TA-530 is a nominal 90% alumina material that is excellent for molten metal contact, kiln furniture, and miscellaneous shapes. TA-530 combines high strength and thermal shock resistance yielding a versatile alumina product that is suitable in a wide variety of applications. TA-540 is a modified version of TA-530 that is best suited for miscellaneous kiln furniture. The higher content aluminas are excellent for use when silica content is critical. TA-505 is suitable for induction melting under vacuum due to a lower silica content while retaining thermal shock resistance. TA-507 is excellent for use in vacuum or hydrogen atmospheres due to the lowered silica content. TA-510F is preferred in hydrogen or vacuum atmospheres and has excellent strength at elevated temperatures.

Foundry Service supplies Insulating Fire Brick (IFB) for use in applications from 2300F (1100C) to 3200F (1760C). Each type is formulated to meet specific thermal and physical requirements, and after firing is machined to precise tolerances. Made from high purity refractory clays and other ceramic raw materials, these IFB contain carefully graded organic filler which is burned out during manufacture to give a uniform, controlled pore structure. Standard sizes are 9" x 4.5" x 2.5" and 9" x 4.5" x 3", but custom sizes up to 24" x 9" x 3" can be produced without any cemented joints. Thicknesses up to 4 12", along with widths up to 12", allow a range of shapes and sizes for applications such as suspended roof modules. In addition to standard shapes including arches, wedges, soaps and splits, fabricated bricks are also available in special cemented or machined shapes. A large machine shop at the factory is capable of supplying accurate machined shapes of nearly any description. The unique large slab means that a finished shape will have fewer joints than shapes made from any other IFB manufacturer. IFB shapes with drilled holes, grooves, flycuts, tapers, radii cuts, skew planes, tongue and groove, notches and chord cuts are easily fabricated in any quality IFB.

Fused Silica properties include good thermal shock resistance, a thermal expansion coefficient close to zero and excellent mechanical properties at high temperatures, making Fused Silica refractory components particularly useful for very demanding applications. Additional properties include chemical stability and low electrical conductivity; although it should be noted that due to its physical structure use at temperatures exceeding 1000C is not possible for cyclic applications. Despite this, the material performs well in the refractory environment, often being used in components such as firing supports, ignition crucibles and dishes.

Metalflow, Monalite, and Ultratemp-AL are strong, machinable, non-asbestos and inorganic Calcium Silicate insulation boards specifically developed for conveying, containing, handling and forming molten aluminum and other non-ferrous metals. Made of fibers, micro silica and ahydrothermally-produced inorganic binder, they are ideal materials for conveying and controlling the flow of aluminum. Manufactured for greater life and improved machining characteristics. High heat treatment removes excess water, and minimizes shrinkage that would normally occur in service. These unique board materials have many outstanding advantages. Metals do not adhere to them, even when they cool and solidify, so skull can be easily removed. They require no foundry facing wash, and do not lead to contamination of the metals. Molten metals are conveyed with less heat loss, so stay at a more uniform temperature, and therefore can be handled at a lower temperature. Because they have a low heat capacity, preheating isn't required. They are crack and shock-resistant, and offer cost efficiency through a long service life.

Fused Silica Foam-50 is characterized by a uniform open cell structure with excellent thermal insulating properties, exceptional resistance to thermal shock, and volume stability over a wide temperature range. The material is capable of being machined to close tolerances using standard carbide tooling. When faced with fused silica cement or other suitable mortars. Foam-50 can withstand moderate working face conditions including trough linings for molten aluminum, copper, and other non-ferrous alloys. Standard block size is 4.5" x 12" x 18" (other sizes by request). Fused Silica Foam-30 is also available from Foundry Service on a special order basis. Foam -30 is a 30 pcf version of ceramic foam.

Silicon Carbide has excellent resistance to corrosion, high mechanical strength, high thermal conductivity, a very low coefficient of thermal expansion, and better thermal shock resistance than alumina at very high temperatures. Silicon carbide is composed of tetrahedra of carbon and silicon atoms with strong bonds in the crystal lattice. This produces a very hard and strong material. Silicon carbide is not attacked by any acids or alkalis or molten salts up to 800C. In air, SiC forms a protective silicon oxide coating at 1200C and is able to be used up to 1600C. The high thermal conductivity coupled with low thermal expansion and high strength give this material exceptional thermal shock resistant qualities. Silicon carbide ceramics with little or no grain boundary impurities maintain their strength to very high temperatures, approaching 1600C with no strength loss. Chemical purity, resistance to chemical attack at temperature, and strength retention at high temperatures has made this material very popular as wafer tray supports and paddles in semiconductor furnaces. The electrical conduction of the material has lead to its use in resistance heating elements for electric furnaces, and as a key component in thermistors (temperature variable resistors) and in varistors (voltage variable resistors). Other applications include seal faces, wear plates, bearings and liner tubes.

Matched for use with each Thermal Ceramics firebrick and insulating firebrickBoth heat-setting and air-setting grades are availableTemperature use limits range from 2850F to 3200FThermal Ceramics refractory mortars were developed to match Thermal Ceramics dense and insulating firebricks in various thermal, chemical, and physical service conditions. Available in wet and dry grades, Thermal Ceramics mortars will provide the convenience you want with the performance you need for practically every high-temperature refractory application. K-Bond Mortar has an extra smooth, creamy consistency plus excellent tackiness to brick surfaces.