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Our mission is to create and maintain a positive and ethical environment in which quality employees develop efficient and economical methods to purchase from responsible suppliers to warehouse, market and timely deliver quality tubular, pipe and bar products. And in order to provide the best possible customer service, we go beyond metal products to provide best-in-class services and solutions that support world-class businesses.

About us

Whether you have a question or want to find out more about Marmon/Keystone, we’d love to hear from you! Reach out to one of our North American HQ offices, or fill out a contact form below. Someone from the right department will get back to you as soon as possible.

We’re not just a supplier. We’re a supply chain solutions company.

We’re here to help you. Take advantage of our resources and years of experience to streamline your own business and build a partnership that will last a lifetime.


United States

Established in 1907, Marmon/Keystone has been supplying steel to customers for over 100 years. Leaning on longevity and experience, Marmon/Keystone has 20 locations strategically placed around the country to provide superior service to their customers ranging from small machine shops to international OEMs. With an eye towards continuous improvement, Marmon/Keystone is constantly listening to its customers to ensure processing equipment and stock is in the right place, in an effort to further become integrated with their customer’s operations. Reach out to your local rep to understand how Marmon/Keystone can be your supply chain partner.



Since 1978, Marmon/Keystone and subsidiary Specialty Steels have been providing their valued customers with pipe, tube, bar, and valves & fittings. With 6 strategic locations accounting for over 500,000 sq ft of warehouse space across Canada, spanning from Quebec to British Columbia, M/K’s reach is far and wide, ensuring top notch customer service and prompt deliveries to customers all over Canada. With customer’s needs in mind, Marmon/Keystone continues to invest in systems and equipment to broaden the value-added services offered.



Marmon/Keystone’s presence in Mexico has been rapidly expanding, with 3 service centers strategically positioned to service their valued customers customer base. Marmon/Keystone is an IMMEX certified distributor allowing for a seamless import process for manufacturers in Mexico. With an extensive value-added program Marmon/Keystone is set up to service customers ranging in size from machine shops to enterprise OEMs. Paired with value-added capabilities M/K Mexico benefits from Marmon/Keystone’s relationship with import and domestic mills creating a strong value proposition to its customer base helping establish M/K as a key supply chain partner.

Contact Marmon/Keystone

We’re ready to answer all of your questions; reach out below and a steel specialist will get in touch shortly.