Celsius 355 CHS 88.9×3.2 is a circular hollow section reference entry for structural steel detailing and preliminary section selection. The source data identifies the section by its outside diameter and wall thickness, then provides its sectional area and unit weight for use in engineering calculations and material takeoffs.
Use this page alongside related guidance on steel shapes, section properties, and structural steel terminology. The accompanying DWG resource can support drafting workflows, but connection design and member verification still require project-specific engineering checks.
Celsius 355 CHS 88.9×3.2
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 : 88.9 mm
Thickness : 3.2 mm
Sectional Area : 8.62 cm2
Unit Weight : 6.8 kg/m
How to read this CHS reference
A circular hollow section, or CHS, is a tubular steel profile with a circular outside form. The designation 88.9×3.2 identifies the diameter and wall thickness given in the source record. These dimensions are useful when checking clearances, interfaces, fittings, and the geometric basis for section-property calculations.
Reference values provided
- Diameter: 88.9 mm
- Thickness: 3.2 mm
- Sectional area: 8.62 cm2
- Unit weight: 6.8 kg/m
The sectional area represents the steel material area used in calculations such as gross-area checks and quantity estimates. Unit weight expresses the listed mass per metre and is useful for estimating member mass, handling requirements, and preliminary steel tonnage. Neither value by itself confirms resistance, stability, connection capacity, or compliance for a particular application.
Referenced standard and drafting use
The entry refers to EN 10210-2:2006-04 for dimensional tolerances, dimensions, and sectional properties of hot-finished structural hollow sections. It supports the technical delivery requirements identified through EN 10210-1. Always confirm the governing project specification and the applicable standard requirements before fabrication or design release.
The downloadable DWG is intended as a drafting reference for the listed profile. Check units, insertion scale, layer conventions, and drawing orientation after importing it into CAD. For related workflows, see the site’s resources on CAD and DWG references and steel connections and detailing.
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 do 88.9×3.2 identify?
In this entry, 88.9 identifies the listed diameter and 3.2 identifies the listed wall thickness. The source record gives both dimensions in millimetres.
What standard is referenced for this section?
The entry refers to EN 10210-2:2006-04, which covers dimensions, tolerances, and sectional properties for hot-finished structural hollow sections. It also identifies EN 10210-1 as the related source for technical delivery conditions.
Can the DWG be used directly for structural design?
The DWG is a drafting reference for the listed profile. It does not replace engineering checks for member resistance, buckling, connections, fabrication tolerances, or project-specific design requirements.
