CHS Circular Steel Hollow Section
Classification :
PRODUCT DETAILS
CHS Circular Steel Hollow Section Description
The Circular Hollow Section (CHS) is a versatile and efficient structural tube characterized by its continuous circular cross-section. This shape provides uniform strength in all directions, offering exceptional resistance to torsion and buckling. It is an ideal choice for applications ranging from high-performance structural columns and space frames to fluid-carrying members and architectural features, where its inherent symmetry and smooth profile deliver both engineering and aesthetic benefits.
Our Circular Hollow Sections are manufactured to international standards including ASTM A500/A1085, EN 10219 (cold-formed), and EN 10210 (hot-finished), ensuring consistent quality and performance for global projects. Available in carbon steel grades such as S235JR, S355JR, and ASTM A500 Gr. B/C, they offer a superior strength-to-weight ratio that enables lighter, more material-efficient designs.
The circular geometry is inherently efficient. It provides:
Uniform Strength & Stiffness: Equal load-bearing capacity in every radial direction, perfect for columns and compressive members.
High Torsional Resistance: The closed shape offers the best possible resistance to twisting forces.
Excellent Fatigue Performance: The smooth, continuous surface minimizes stress concentrations.
Optimal Fluid Dynamics: Ideal for structural members that also serve as conduits, pipes, or in fluid-exposed environments.
Key Advantages:
Structural Efficiency: Maximizes load capacity while minimizing weight and material usage.
Design Flexibility: Suitable for both exposed architectural elements and hidden structural components.
Fabrication Friendly: Easy to bend, roll, and form into arches and curves for complex geometries.
Aesthetic Appeal: Offers a clean, modern, and continuous visual line.
Typical Applications:
Structural Systems: Building columns, arched roofs, truss chords, offshore platform braces.
Mechanical & Fluid Systems: Machinery frames, hydraulic cylinder housings, conveyor rollers, process piping supports.
Architectural & Infrastructure: Handrails, light poles, signage posts, sculptural installations, pedestrian bridges.
Industrial: Storage rack uprights, guardrail systems, agricultural equipment frames.
Product Parameters
| Size in Inches |
Thickness in Inches |
Weight Per Foot |
Weight Per 24′ |
|---|---|---|---|
| 1.05 O.D. | 0.100 | 1.02 | 24.48 |
| 1.315 O.D. | 0.100 | 1.56 | 31.20 |
| 1.315 O.D. | 0.125 | 1.59 | 38.16 |
| 1.66 O.D. | 0.125 | 2.05 | 49.20 |
| 1.75 O.D. | 0.125 | 1.81 | 43.40 |
| 1.9 O.D. | 0.100 | 1.92 | 46.08 |
| 1.9 O.D. | 0.125 | 2.38 | 57.12 |
| 1.9 O.D. | 0.188 | 3.44 | 82.56 |
| 2.735 O.D. | 0.125 | 3.01 | 72.24 |
| 2.735 O.D. | 0.188 | 4.40 | 105.60 |
Application of CHS Circular Steel Hollow Section
● Buildings
● Bridges
● Towers
● Sign supports
● Drilling platforms
● And other critical infrastructure.
Packing and delivery
The company has become a trustworthy partner of the international steel industry. After nearly two decades of unremitting efforts, our customer base now covers more than 110 countries and regions in Europe, the Middle East, South America, and Southeast Asia.

Quality Inspection
Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner. Warmly welcome you to visit our factory!
FACTORY WORKSHOP
CERTIFICATES
VERIFICATION OF CONFORMITY
QUALITY MANAGEMENT SYSTEM CERTIFICATE
CERTIFICATE OF QUALITY MANAGEMENTSYSTEM CERTIFICATION
CERTIFICATE OF MANUFACTURING ASSESSMENT
CERTIFICATION OF QUALITY MANAGEMENT SYSTEM
NTEGRITY MANAGEMENT LIXIN ENTERPRISE
HONEST SUPPLIER ENTERPRISE
HONORARY CERTIFICATE OF HONEST ENTREPRENEUR
PARTNERS
APPLICATION FIELD
New Energy
Energy extraction
Precision Manufacturing
Aerospace
Bridge construction
Rail Transit
FAQ
Q:Does the product have quality inspection before loading?
A: Of course, all our products are strictly quality tested before packing, unqualified products will be destroyed, customers can appoint a third party to inspect the products before loading as well.
Q:Can l go to your factory to visit?
A: Of course, we welcome customers from all over the world to visit our factory
Q:How many countries you already exported to?
A: We have exported to the United States, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana, Somalia and other African countries. We have rich export experience, we are familiar with different market demands and can help customers avoid a lot of trouble.
Q:How long does your delivery time take?
A: Generally speaking, our delivery time is within 7-15 days, if the quantity is very large or special circumstances occur, it may be longer.
Q:lt's my first time to import steel products, can you help me with it?
A: Of course, we have agent to arrange the shipment and we will do it with you.
Q:What product information do l need to provide?
A: Please provide the grade, width, thickness, surface treatment requirements (if you have any) and the quantity you need to purchase.
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