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Hollow Sections

Hot-Formed

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

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Features

Corner Radii

Small corner radii enhance the appearance of hot-formed hollow sections and facilitate easier welding.

Low Stress

The hot-forming process minimizes residual stresses throughout the entire section, including flat surfaces, corners, and weld seams.

Ductility

Hot-formed sections offer excellent ductility in all areas and directions. Combined with a low yield-to-tensile strength ratio, they provide outstanding energy absorption and high resistance to brittle fracture.

Microstructure

Formed within the normalizing temperature range, at temperatures exceeding 840°C, these sections achieve a uniform fine-grained microstructure and consistent hardness across the entire profile, including corner regions.

HOT FORMED HOLLOW STEEL PROFILES

  • Certificates and Approvals

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

  • Material and delivery terms

    Hot formed steel profiles:
    EN 10210 - S355J2H / S355NH

  • Dimensions scope

    Dimensions:
    40 x 40 mm - 400 x 400 mm
    und 50 x 30 mm - 500 x 300 mm
    Wall thickness:
    2,9 - 20 mm

Hot-Finished Steel Hollow Sections

Hot-finished hollow sections are used in structures where mechanical properties, section geometry, and performance under load, particularly dynamic load, are important. Depending on the manufacturing process, the material is either hot-formed or cold-formed and subsequently heat-treated to achieve the required properties.

Compared with cold-formed sections, hot-finished sections have different corner geometries and residual stress distributions. This can be important in structural calculations, especially for compression members, columns, and heavily loaded structures.

Hot-Formed Sections

Characteristics and Advantages

  • Corner geometry

    Typically features smaller corner radii than cold-formed sections.

  • Mechanical properties

    Manufacturing processes provide material characteristics suitable for demanding structural applications.

  • Performance under load

    Advantageous for compression members and structures with complex loading patterns.

  • Use in demanding projects

    When properly selected, they are suitable for industrial and infrastructure applications.
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Applications

Hot-finished hollow sections are used in:

Buildings

Load-bearing structures of buildings and industrial halls

Columns and Frames

Columns, frames, and heavily loaded structural members

Infrastructure

Infrastructure and transport structures

Machinery

Machine and equipment frames

Heavy Industry

Industrial structures operating under demanding service conditions

EN 10210 Standard

Hot-finished hollow sections are generally covered by EN 10210, which applies to hot-finished structural hollow sections of non-alloy and fine-grain steels.

When selecting a product, verify the required steel grade, dimensions, tolerances, and inspection documentation.

It should not be assumed that every hot-finished section has higher load-bearing capacity than every cold-formed section. Actual performance depends on factors such as steel grade, wall thickness, section geometry, and support conditions.

Steel sections in a warehouse

Material Selection

When requesting a quotation, specify:

  • Dimensions

    Wall thickness and length

  • Steel Grade

    Steel grade and required mechanical properties

  • Standards

    Applicable product manufacturing standards

For structural applications, project requirements, impact toughness requirements, and quality documentation should also be specified.

Need help selecting the right hollow sections?

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

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