This reference page identifies the Celsius 355 circular hollow section (CHS) with a 114.3 mm diameter and 5.6 mm thickness. The source data provides its sectional area, unit weight, applicable standard reference, and a downloadable CAD file for drafting workflows.
Use the dimensional and section-property values below as a reference when reviewing structural steel shapes, comparing hollow sections, or preparing preliminary connection and detailing layouts. Final member selection and connection design require verification against the governing design basis, loads, restraints, fabrication requirements, and project specifications.
Celsius 355 CHS 114.3×5.6
Celsius 355 Circular Hollow Sections
refer to : EN 10210-2:2006-04
the European standard that specifies tolerances, dimensions, and sectional properties for hot-finished structural hollow sections of non-alloy and fine grain steels. It supports EN 10210-1, which covers technical delivery conditions.
Diameter : 114.3 mm
Thickness : 5.6 mm
Sectional Area : 19.1 cm2
Unit Weight : 15 kg/m
How to read this CHS reference
CHS means circular hollow section. Unlike an open steel profile, it has a continuous circular wall, so its diameter and wall thickness describe the basic section geometry. The listed sectional area is useful for understanding the amount of steel in the cross-section, while unit weight supports material takeoffs and approximate linear-weight comparisons.
Standard and product designation
The source identifies EN 10210-2:2006-04 as the reference for tolerances, dimensions, and sectional properties of hot-finished structural hollow sections made from non-alloy and fine grain steels. It also notes the relationship with EN 10210-1, which addresses technical delivery conditions. Always confirm the applicable project specification and current purchasing requirements before ordering material.
Using the dimensions in drawings
The designation 114.3×5.6 communicates the nominal diameter and wall thickness shown in the source content. When developing fabrication or structural drawings, clearly identify the section designation, material grade, orientation where relevant, connection details, weld requirements, and any applicable tolerances. The supplied DWG can support CAD coordination, but its geometry and metadata should be checked against the source reference and project standards before issue.
Related steel reference topics
- Structural hollow sections: compare CHS with square and rectangular hollow sections when reviewing profile options.
- Section properties: distinguish sectional area and unit weight from design resistance and member capacity.
- Steel connections and detailing: review how joints, welds, plates, and clearances affect the final design.
- CAD and DWG resources: use downloadable geometry as a drafting aid rather than as a substitute for engineering verification.
Frequently asked questions
What does CHS mean?
CHS stands for circular hollow section, a steel profile with a circular outside form and a hollow interior.
What do 114.3×5.6 and the listed properties describe?
In this reference, 114.3×5.6 identifies the listed diameter and thickness. The source also gives the sectional area as 19.1 cm2 and the unit weight as 15 kg/m.
Which standard is referenced?
The source refers to EN 10210-2:2006-04 for tolerances, dimensions, and sectional properties, and identifies EN 10210-1 as covering technical delivery conditions.
Is the DWG ready for fabrication?
The DWG is provided as a CAD reference for the listed section. Review its geometry, layer information, units, and project-specific drafting requirements before using it in issued documents.
Can the listed section properties be used directly for design?
They should be treated as reference data. Member and connection design must account for the governing code, loads, stability, material requirements, fabrication, and project conditions.
