The Celsius 355 CHS 60.3×2.9 reference provides the basic dimensional and mass data needed to identify this circular hollow section in steel schedules, connection details, and design documentation.
Use the values below as the controlling local reference for this section. For broader context, see related guidance on circular hollow sections (CHS), section properties, steel grades, and structural steel detailing.
Celsius 355 CHS 60.3×2.9
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 : 60.3 mm
Thickness : 2.9 mm
Sectional Area : 5.23 cm2
Unit Weight : 4.1 kg/m
How to read this CHS reference
A circular hollow section is a tubular steel profile with a circular outside form and a continuous wall. The listed diameter and thickness identify the nominal geometry, while the sectional area describes the steel contained in the cross-section.
Sectional area and unit weight
Sectional area is commonly used when reviewing axial resistance, stress calculations, and other section-property checks. The listed unit weight supports material takeoffs and estimates of linear dead load. These values should be used with the applicable design method and verified by the responsible engineer when they affect a structural decision.
Standard reference
The source identifies EN 10210-2 as the dimensional and sectional-property reference for hot-finished structural hollow sections, with EN 10210-1 covering technical delivery conditions. This distinction helps separate geometric reference data from requirements concerning the supplied steel product.
Using the DWG resource
The supplied DWG download can be useful for drafting, layout, and preliminary detailing. Check the drawing units, layer conventions, insertion scale, and project requirements before incorporating the geometry into production documents. A CAD profile does not replace connection design, fabrication review, or project-specific engineering verification.
Related reference topics
- CHS terminology: understand diameter, wall thickness, and hollow-section notation.
- Section-property references: distinguish area and other properties used in structural checks.
- Steel detailing: coordinate section identification with connections, cuts, welds, and fabrication notes.
- CAD and DWG resources: use downloadable geometry as a drafting aid while checking project standards.
Frequently asked questions
What does CHS mean?
CHS means circular hollow section. It describes a tubular structural steel profile with a circular cross-section.
What information is listed for this Celsius 355 section?
The reference lists the section diameter, wall thickness, sectional area, and unit weight, together with the cited EN 10210-2 standard reference.
What is the purpose of the sectional area value?
Sectional area is a geometric property used in engineering calculations and section comparisons. Its application depends on the relevant design checks and material assumptions.
Can the DWG file be used directly for fabrication?
The DWG is a drafting resource. Confirm units, project conventions, tolerances, connection details, and fabrication requirements before using it in issued drawings.











