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Hollow Sections

Cold-Formed

Explore our range of cold-formed steel hollow sections available in various grades, dimensions, and specifications for a wide range of industrial applications.

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Features

Versatility

Suitable for a wide range of applications, including steel structures, residential and commercial construction, and equipment manufacturing

Efficiency

The simple profile geometry combined with excellent strength characteristics allows for the design of durable, lightweight, and cost-effective structures

Accuracy

High dimensional accuracy

Finish

Excellent surface quality

Reliability

Consistent and reliable mechanical properties

Grades

Available in a wide range of steel grades, including S235JRH, S355J2H, and S500MH, as well as high-strength grades such as S700MH, S900MH, and S960MH

Tubes

  • Certificates and Approvals

    With certificate 3.1 according to EN 10204, upon request with certificate 3.2, EC mark incl. S700MH

  • Material and delivery terms

    Cold-bent tubes:
    EN 10219 - S235JRH/ S355J2H/ S420MH
    Cold-bent tubes high strength:
    EN 10149-2/EN 10219-2 - S500MH/ S700MH/ S900MH/ S960MH / P355N / P355NHTC1

  • Dimensions scope

    External dimensions:
    26,9 mm - 508 mm
    Wall thickness:
    2,6 mm- 16 mm 

HOLLOW STEEL PROFILES

  • Certificates and Approvals

    With certificate 3.1 according to EN 10204, upon request with certificate 3.2, EC mark incl. S700MH

  • Material and delivery terms

    Cold formed hollow steel square and rectangular profiles:
    EN 10219 - S235JRH/ S355J2H/ S420MH
    Cold formed hollow steel square and rectangular profiles high strength:
    EN 10149-2/EN 10219-2 - S500MH/ S700MH/ S900MH/ S960MH

  • Dimensions scope

    External dimensions :
    15 x 15 mm - 400 x 400 mm and 20 x 10 mm - 500 x 300 mm
    Wall thickness:
    1,5 mm- 20 mm

Cold-Formed Steel Hollow Sections

Cold-formed hollow sections are steel products (tubes) with square or rectangular cross-sections, manufactured by forming a steel strip at room temperature and joining the edges with a longitudinal weld. This process provides consistent dimensions, a wide range of section sizes, and a favorable strength-to-weight and particularly stiffness-to-weight ratio.

Due to their closed-section geometry, these profiles offer excellent bending and torsional stiffness, making them widely used in steel structures, machinery manufacturing, and industrial applications. Their popularity also stems from opportunities for weight optimization and efficient material utilization.

KÖNIGSTAHL offers cold-formed hollow sections in various dimensions and steel grades. The most common grades include S235JRH, S355J2H, and high-strength steels such as S500MH, S700MH, S900MH, and S960MH, depending on product range and delivery conditions.

Cold-Formed Sections

Key Properties

  • Structural efficiency

    Closed sections transfer loads effectively while maintaining relatively low weight.

  • Geometric consistency

    Simplifies design, fabrication, and installation.

  • Wide range of applications

    Available in various sizes to suit project requirements.

  • Further processing capability

    Profiles can be cut, drilled, welded, and otherwise processed, including 3D laser processing available at our service centers.

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Applications of Cold-formed Tubes

Cold-formed hollow sections are used in:

Buildings

Industrial buildings, canopies, and roofing structures

Machinery

Machine and equipment frames.

Transport

Transportation structures and vehicle components.

Infrastructure

Industrial equipment and infrastructure components.

Supports

Stands, supports, and frames;

Construction

Structural steelwork in construction

Steel Grades and Delivery Conditions

Cold-formed structural hollow sections are typically manufactured in accordance with EN 10219. This standard defines technical delivery conditions and dimensional tolerances. The appropriate steel grade should be selected based on required load-bearing capacity, operating temperature, loading conditions, and project requirements.

For high-strength grades, special attention should be paid to welding, forming, and processing requirements, which may differ from those applicable to standard structural steels.

Steel sections in a warehouse

How to Select a Cold-Formed Section?

Selection should be based on:

  • Dimensions

    Outside diameter, wall thickness and length

  • Steel Grade

    Steel grade and required mechanical properties

  • Standards

    Applicable product standards

  • Documentation

    Documentation requirements

  • Application

    Intended application of the component.

For load-bearing structures, the selected section should be based on engineering design calculations considering loads and support conditions.

Not Sure Which Steel Fits Your Project?

Our steel specialists can help you navigate material options and identify the best solution for your performance, processing, and durability requirements.

Contact a specialist