The Hybox 355 CHS 60.3×4 is a circular hollow section reference for steel design, detailing, and drafting work. This page brings together the section dimensions and the listed sectional data, with context for the European standard identified in the source.
Use the values below when checking a model, comparing hollow-section options, or preparing fabrication and connection details. The accompanying DWG resource can support CAD workflows, but the section data and any design application should be checked against the project requirements and the applicable engineering design method.
Hybox 355 CHS 60.3×4
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 : 60.3 mm
Thickness : 4 mm
Sectional Area : 7.07 cm2
Unit Weight : 5.5 kg/m
How to read the Hybox 355 CHS designation
CHS means circular hollow section. In the designation 60.3×4, the first value identifies the circular outside diameter and the second identifies the wall thickness, as listed in the source data. The page also reports the section area and unit weight for reference and coordination purposes.
Standard reference
The source refers to 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 complements EN 10219-1, which covers technical delivery conditions. Keep these roles distinct when reviewing material documentation, dimensional requirements, or procurement information.
Using the section data in practice
The listed area and unit weight are useful for preliminary comparison, quantity checks, and coordination between design and detailing teams. They do not by themselves establish resistance, stability, connection capacity, fire performance, or suitability for a particular structural application. Those checks require the governing design standard, material documentation, load effects, restraint conditions, and verified connection details.
For related reference work, connect this page to the site’s circular hollow section terminology, section properties, EN 10219 guidance, and steel connection detailing resources. The DWG download is intended as a practical drafting aid; users should verify units, scale, layer content, and geometry before incorporating it into a project drawing.
Frequently asked questions
What does CHS mean?
CHS means circular hollow section. It describes a hollow steel profile with a circular cross-section.
What do 60.3×4 and the listed dimensions represent?
The designation identifies a diameter of 60.3 mm and a thickness of 4 mm, as shown in the source data.
Which standard is referenced for this section?
The source references EN 10219-2:2006-04 for dimensional, tolerance, and sectional-property information, alongside the delivery-condition role of EN 10219-1.
What information is provided for the section?
The reference lists a sectional area of 7.07 cm2 and a unit weight of 5.5 kg/m, in addition to the diameter and thickness.
Can the DWG file be used directly for structural design?
The DWG is a drafting reference, not a substitute for design verification. Confirm the geometry, units, material specification, and project requirements before using it in drawings or calculations.
