The Hybox 355 CHS 168.3×4 is a circular hollow section reference for structural steel detailing and preliminary section selection. This page brings together the listed diameter, wall thickness, sectional area, unit weight, applicable standard reference, and a downloadable DWG file.
Use the dimensional data below when coordinating drawings, checking a section schedule, or comparing circular hollow sections. Any structural application, connection design, fabrication decision, or code check should be verified by a qualified engineer using the governing project requirements.
Hybox 355 CHS 168.3×4
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 : 168.3 mm
Thickness : 4 mm
Sectional Area : 20.6 cm2
Unit Weight : 16.2 kg/m
Hybox 355 CHS 168.3×4 reference
CHS means circular hollow section. The section listed here has a circular profile with a diameter of 168.3 mm and a thickness of 4 mm. Its listed sectional area is 20.6 cm2, and its unit weight is 16.2 kg/m.
Key section data
- Section: Hybox 355 CHS 168.3×4
- Diameter: 168.3 mm
- Thickness: 4 mm
- Sectional area: 20.6 cm2
- Unit weight: 16.2 kg/m
Standard reference and CAD resource
The source identifies EN 10219-2:2006-04 as the reference for tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections made from non-alloy and fine grain steels. It also notes that this standard complements EN 10219-1, which addresses technical delivery conditions.
For drafting workflows, download the provided DWG file and compare its geometry with the project section schedule before using it in production drawings. Related internal resources can include the site glossary for CHS, the EN 10219 reference page, and the structural steel CAD/DWG library.
Using the listed properties
The sectional area and unit weight are useful for reference, quantity takeoffs, and coordination. They should not be treated as a complete design check: resistance, stability, connections, fabrication tolerances, and project-specific loading require separate engineering verification.
Frequently asked questions
What does CHS mean?
CHS means circular hollow section. It describes the circular hollow profile identified on this page.
What are the dimensions of Hybox 355 CHS 168.3×4?
The listed diameter is 168.3 mm and the listed thickness is 4 mm.
What is the sectional area of this section?
The listed sectional area is 20.6 cm2.
What is the unit weight?
The listed unit weight is 16.2 kg/m.
Which standard is referenced?
The source references EN 10219-2:2006-04 for tolerances, dimensions, and sectional properties, and identifies EN 10219-1 as covering technical delivery conditions.
Is a DWG file available?
Yes. The page includes a downloadable DWG resource for Hybox 355 CHS 168.3×4. Review the file against the project requirements before incorporating it into design or fabrication documentation.
