Shop Marmon / Keystone Products

Why Choose Marmon/Keystone

Hydraulic Supply Company proudly carries a full range of Marmon / Keystone tubing products. Known for quality, reliability, and precision, Marmon / Keystone supplies high-performance metal products that meet the demanding standards of hydraulic, pneumatic, and industrial applications.

Founded in 1907, Marmon / Keystone has built more than a century of expertise in metal distribution and processing. As a Marmon / Berkshire Hathaway company, it operates one of North America’s largest inventories of carbon steel, stainless steel, aluminum, and alloy tubing and bar products. With strategically located service centers and advanced processing capabilities, Marmon / Keystone delivers the right materials—cut, formed, and finished to specification—with consistency and speed.

From hydraulic and pneumatic systems to structural and mechanical applications, Marmon / Keystone’s products are engineered and manufactured to perform in demanding industrial environments. Their focus on precision, service, and logistical efficiency makes them a trusted partner for OEMs, fabricators, and maintenance professionals alike.

Marmon / Keystone’s mission is to provide high-quality metal solutions, outstanding customer service, and supply-chain efficiency that help customers achieve greater reliability, performance, and cost-effectiveness in their operations.

How to Order Marmon/Keystone Products

Ordering Marmon / Keystone products from Hydraulic Supply Company is quick and convenient. You can place your order by phone, fax, email, online, or through EDI—whichever works best for your workflow. For personalized support or help sourcing the right Marmon / Keystone tubing, pipe, or bar products, call us at (800) 507-9651.

Popular Marmon/Keystone Products:

Industries Served:

Marmon / Keystone products are trusted by OEMs, fabricators, and maintenance professionals across a wide range of industries, including:

  • Hydraulics & Pneumatics: Precision tubing and bar materials engineered for fluid power systems.

  • Construction & Infrastructure: Durable carbon and stainless steel pipe and tubing for structural and support applications.

  • Manufacturing & Industrial: High-quality metals designed to meet exact performance specifications and machining tolerances.

  • Agriculture & Forestry: Corrosion-resistant and durable tubing for equipment and machinery.

  • Transportation & Energy: Custom metal solutions for vehicles, utilities, and energy-sector operations.

FAQs

Does Hydraulic Supply Company stock Marmon / Keystone products for immediate shipment?

Yes. Hydraulic Supply Company maintains a broad inventory of Marmon / Keystone tubing, pipe, and bar products—many in stock and ready to ship from our distribution centers.

What makes Marmon / Keystone products stand out?

Marmon / Keystone is known for its exceptional product quality, extensive inventory, and precision processing. Their ability to deliver custom-cut, ready-to-use metal materials ensures accuracy, performance, and reduced lead times.

Can Hydraulic Supply Company help me find the right Marmon / Keystone material or size?

Absolutely. Our experienced team can help identify the right tubing, pipe, or bar dimensions for your specific hydraulic or industrial application.

Does Hydraulic Supply Company offer OEM or fabrication support for Marmon / Keystone products?

Yes. Hydraulic Supply Company partners with Marmon / Keystone to support OEMs and industrial customers with material selection, processing, and supply-chain solutions tailored to performance and production requirements.