Refractories are heat-resistant materials that constitute the linings for structures, or as components of systems, that are exposed to environments above 1,000 °F (811 K; 538 °C), for example, in processing units such as reactors & high-temperature furnaces. Refractories also need to be able to withstand corrosion & physical wear from chemicals.
Old Hickory produces a range of high quality ball clays and kaolin clays for a variety of refractory applications. There are specific selections available for the manufacture of refractory brick including IFB and high alumina super duty type formulations. Our ball clay and kaolin clay selections also include suitable choices for the production of castables, gunning mixes, plastics, and ramming mixes. In addition, established selections exist for producing molten metal filters, refractory washes, and cordierite refractory shapes produced by extrusion or casting. Our clays for refractories are noted for their high alumina content, low iron oxide and total alkali contents. They provide high plasticity and strength characteristics to the wide range of refractory products produced.
Popular selections include:
M-23, No.5, No. 1 glaze, Taylor, MCB-11, UPF and LPC. Specific grades can also be recommended for any of the vast variety of refractory products and applications.