Every day around the world, HarbisonWalker International’s people and products stand up to the challenges and pressures of every job. And for 150 years, we’ve served virtually every industry that needs refractories products to do its job.  We deliver one of the industry’s widest, deepest lines of solutions. Our world-class refractory products perform to the highest degree. And by bringing intensity, reliability, and passion to work every day, we’re able to provide superior value to our customers and their businesses.  With more than 150 years of industry leadership, HarbisonWalker International is the largest supplier of refractory products and services in the United States. Headquartered in Pittsburgh, Pennsylvania, the company’s international network spans North America, Europe, and Asia, with 19 manufacturing plants, 30 global sourcing centers, and technology facilities in both the United States and China. Serving virtually every major industry that requires refractory solutions to enhance production and protect assets, HWI is consistently recognized for its talented experts, industry firsts, and intensely driven excellence.