This reference identifies a Celsius 355 circular hollow section (CHS) with the dimensions and section data provided in the source record. Use it as a quick lookup when reviewing structural steel schedules, connection details, or CAD drawings.
The page also provides access to a DWG file for drafting workflows. Confirm the section designation, units, and project requirements before using downloaded geometry in design documentation.
Celsius 355 CHS 21.3×3.2
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 : 21.3 mm
Thickness : 3.2 mm
Sectional Area : 1.82 cm2
Unit Weight : 1.4 kg/m
How to read this CHS reference
A circular hollow section is a closed, round steel profile. The listed diameter and thickness describe its basic cross-section, while sectional area and unit weight support material takeoff, comparison, and preliminary reference work.
Standard reference
The source identifies EN 10210-2:2006-04 as the dimensional and sectional-property reference for this hot-finished structural hollow section. That standard reference should be read alongside the stated delivery requirements and the project specification.
Using the section data
- Use the diameter and thickness when checking section identification against a drawing or schedule.
- Use sectional area for reference in calculations that require the steel cross-sectional area.
- Use unit weight when preparing material estimates or reviewing member schedules.
- Use the DWG download as a drafting aid, then verify the drawing against the authoritative project documents before issue.
For related research, connect this reference with the site’s guides to CHS terminology, section properties, steel connections and detailing, and structural steel CAD resources.
Frequently asked questions
What type of section is Celsius 355 CHS 21.3×3.2?
It is identified as a Celsius 355 circular hollow section, or CHS. The source lists its diameter, thickness, sectional area, and unit weight.
Which standard is referenced for this section?
The source refers to EN 10210-2:2006-04, which covers dimensions, tolerances, and sectional properties for the relevant hot-finished structural hollow sections.
What is the DWG file used for?
The linked DWG is a CAD reference for drafting and detailing workflows. Check its geometry and the section designation against the source data and project requirements before using it in issued documents.
Does this page replace structural design verification?
No. It is a dimensional and reference-data entry. Member design, connection design, material specification, fabrication requirements, and code compliance require project-specific engineering review.
