HarbisonWalker International (HWI), founded in 1865, is the largest supplier of refractory products and services in the United States. The company provides a wide range of solutions for high-temperature industrial applications, serving sectors including iron and steel, aluminum, glass, petrochemicals, cement, and power generation. It is recognized as a leader in both alumina-silica and basic refractory product lines across North America.
The company's operational footprint includes 25 manufacturing sites and 20 distribution centers, with a presence in Canada, Brazil, and Mexico. Its headquarters are located in Pittsburgh, Pennsylvania. HWI's technical work focuses on refractory materials science, high-temperature industrial solutions, and research and development, with an emphasis on innovation, safety, quality, and sustainability.
With a history spanning more than 160 years, HarbisonWalker International has established itself as a long-standing industrial supplier. Its portfolio is among the refractory industry's widest, positioning it as a key partner for industries that rely on durable materials capable of withstanding extreme temperatures.
