This reference identifies the Hybox 355 CHS 114.3×4 circular hollow section and summarizes the dimensional and mass data provided in the source record. Use the designation to locate the matching section in design notes, drawings, schedules, and CAD workflows.
The listing is intended as a practical starting point for engineers, detailers, fabricators, and students working with circular hollow sections (CHS). The source data should remain the controlling reference for the values shown on this page.
Hybox 355 CHS 114.3×4
Hybox 355 Circular Hollow Sections
refer to : EN 10219-2:2006-04
the European standard that specifies tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections made of non-alloy and fine grain steels. It complements EN 10219-1, which covers technical delivery conditions.
Diameter : 114.3 mm
Thickness : 4 mm
Sectional Area : 13.9 cm2
Unit Weight : 10.9 kg/m
How to read the Hybox 355 CHS designation
CHS means circular hollow section. The designation identifies a Hybox 355 product and a circular section with a nominal diameter of 114.3 mm and a nominal wall thickness of 4 mm. These dimensions are useful when coordinating connection details, clearances, member schedules, and drawing annotations.
Reference data and section properties
The source record reports the section area and unit weight alongside the basic dimensions. Sectional area is used in member calculations such as axial resistance and material quantity checks, while unit weight supports estimating, handling, and scheduling workflows. Neither value should be substituted with an assumed value from another hollow-section series.
- Diameter: 114.3 mm
- Thickness: 4 mm
- Sectional area: 13.9 cm2
- Unit weight: 10.9 kg/m
Standard reference
The source cites EN 10219-2:2006-04, which addresses tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections made from non-alloy and fine grain steels. It is identified as complementary to EN 10219-1, which covers technical delivery conditions. Consult the applicable project specification and verified design documentation before using the section in fabrication or structural design.
CAD and detailing workflow
A DWG download is provided with the record for users preparing drawings or checking geometric coordination. Treat the CAD file as a drafting resource and verify that the selected profile, dimensions, material requirements, connection details, and project tolerances agree with the governing documentation. Related SteelSTD resources on CHS terminology, section properties, steel connections, and DWG references can provide useful follow-up context.
Frequently asked questions
What does CHS mean?
CHS means circular hollow section, a hollow steel profile with a circular outside form.
What are the listed dimensions?
The source lists a diameter of 114.3 mm and a thickness of 4 mm for this Hybox 355 section.
What section properties are provided?
The record provides a sectional area of 13.9 cm2 and a unit weight of 10.9 kg/m.
Which standard is referenced?
The listing refers to EN 10219-2:2006-04 for relevant tolerances, dimensions, and sectional properties, with EN 10219-1 identified for technical delivery conditions.
Is a CAD file available?
Yes. The page includes a DWG download associated with the Hybox 355 CHS 114.3×4 profile.
Does this page confirm structural suitability?
No. The listed dimensions and properties are reference data. Structural selection, resistance, connection design, fabrication, and project compliance require review against the applicable design basis and engineering documentation.
