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Round Hollow Structural Sections Supplier

With more and more demand for round tubing or round HSS, Saginaw now stocks 3” O.D. through 7-1/2” O.D, along with 10” O.D. in most common wall thicknesses. Saginaw Pipe proudly supplies round hollow structural sections (HSS) used in various structural components across the country. Contact one of our steel experts today! 

 

Available Steel Round HSS Sizes and Specifications

Saginaw Pipe maintains an in-stock inventory of steel round HSS from 3" O.D. through 7-1/2" O.D., along with 10" O.D. in the most common wall thicknesses, minimizing lead times and giving fabricators immediate access to the sizes they need.

ASTM Standards: Saginaw Pipe's round HSS inventory is certified to ASTM A500 Grade B/C, the most widely specified standard for cold-formed welded carbon steel hollow structural sections. Our material meets the specification requirements for both Grade B and Grade C, giving engineers and fabricators confidence in every order.

Common Applications for Steel Round HSS

Steel round HSS is one of the most versatile structural shapes in modern construction. Saginaw Pipe supplies round hollow structural sections for use in:

  • Commercial and industrial buildings - columns, bracing, and framing
  • Bridges and infrastructure - load-bearing structural support
  • Stadium and arena roofs - long-span architectural applications
  • Transmission towers - high-strength, corrosion-resistant framing
  • Handrails and guardrails - aesthetic and structural use
  • Agricultural and material handling equipment - frames and support structures
  • Solar torque tube structures - renewable energy mounting systems

Why Round HSS Outperforms Other Structural Shapes

Round hollow structural sections are not only aesthetically pleasing and a favorite for architectural design, but they are also efficient structural members. With their lack of a weak axis, they are superior in compression. Their closed shape makes them preferred when torsionally loaded.

Additional advantages include:

Advantage Description
Fewer Connection Limit States Round HSS requires fewer limit state checks compared to open sections, simplifying connection design.
Concrete-Fill Compatible Round HSS can be filled with concrete to increase compression capacity and provide fire resistance.
High Strength-to-Weight Ratio Delivers superior structural performance while reducing overall material and freight costs.
Clean, Finished Appearance The smooth circular profile is ideal for exposed architectural applications where aesthetics matter.

Why Choose Saginaw Pipe as Your Round HSS Supplier?

  • In-stock inventory for fast turnaround with no waiting on mill orders
  • Wide OD range from 3" through 10" O.D.
  • ASTM A500 Grade B/C certified material
  • Serving structural fabricators, contractors, and distributors nationwide
  • Steel experts available to assist with spec selection and quantity planning

Contact Saginaw Pipe today to request a quote on steel round HSS for your next project.

Frequently Asked Questions About Round Hollow Structural Sections

Round HSS (Hollow Structural Sections) are cold-formed, welded carbon steel tubes with a circular cross-section, designed for structural load-bearing applications in buildings, bridges, and industrial frameworks. They are produced to ASTM A500 and ASTM A1085 standards and differ from standard pipe in that they are dimensioned and certified for structural performance.

HSS is dimensioned and specified primarily for structural performance, including load-bearing members in frames, trusses, and columns. Steel pipe, such as ASTM A53, is intended for mechanical, pressure, and fluid transportation applications. While they may look similar, using pipe-spec material in a structural application can introduce compliance and performance risks.

Saginaw Pipe stocks steel round HSS from 3" O.D. through 7-1/2" O.D. in multiple wall thicknesses, plus 10" O.D. in the most common wall thicknesses. Contact us for availability on specific dimensions.

Our round HSS inventory is certified to ASTM A500 Grade B/C, the predominant structural specification for cold-formed welded carbon steel HSS in North America.

Yes. Round HSS can be filled with concrete to increase compression capacity and provide fire resistance, making it a popular choice for composite columns in high-rise and commercial construction.

Round HSS is widely used in commercial buildings, bridges, stadium roofs, transmission towers, handrails, solar mounting structures, and material handling equipment. Its circular profile offers superior torsional resistance and no weak-axis orientation, making it ideal for multi-directional loading scenarios.

Simply contact our team of steel experts through our website or by phone. Provide your required OD, wall thickness, length, and quantity, and we will get back to you with pricing and availability quickly.

Work With a Trusted Round Hollow Structural Sections Supplier

Saginaw Pipe stocks steel round HSS from 3" O.D. through 10" O.D. in the most common wall thicknesses, ready for fast turnaround. Whether you are a structural fabricator, contractor, or distributor, our team is ready to confirm availability, provide competitive pricing, and get your order moving. Reach out today to get started.

Request a Quote 1-800-433-1374

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