At Marmon Keystone, we understand the pace and precision that drive the general fabrication industry. Whether you’re building equipment, structural components, or custom assemblies, your projects rely on high-quality material, consistent availability, and dependable service. That’s exactly what Marmon Keystone delivers.
As a leading distributor of carbon, alloy, stainless steel, and aluminum tubular and bar products, Marmon Keystone has built lasting partnerships with fabrication shops across North America. From small-scale production to large manufacturing runs, we supply the metal solutions fabricators trust to maintain tight timelines and demanding quality standards.
Our inventory is engineered to meet the diverse needs of the fabrication world. We stock a broad range of products commonly used in the industry, including hot and cold rolled steel tubing, DOM (Drawn Over Mandrel) tubing, structural pipe, mechanical tubing, and aluminum bar and tube. Whether you’re cutting, bending, welding, or assembling, our materials offer the strength, formability, and reliability that keep your operations moving.
Beyond material supply, Marmon Keystone offers a wide range of value-added services designed to streamline your production flow. From precision cutting and just-in-time delivery to specialized packaging and inventory management, we help fabricators reduce waste, shorten lead times, and control costs — all while ensuring the material arrives ready for the next stage of production.
In an industry where timing is everything, our national network of strategically located service centers allows us to maintain short lead times and reliable supply chain continuity, no matter the size or complexity of your order. Whether you’re producing custom one-offs or high-volume parts, Marmon Keystone is ready to support your fabrication needs with consistent quality and exceptional service.