This reference identifies the Celsius 355 circular hollow section with a 48.3 mm diameter and 2.9 mm wall thickness. It brings together the source dimensions, sectional area, unit weight, applicable standard reference, and a CAD download for drafting workflows.
Use the data below as a section-reference entry rather than as a substitute for project-specific structural design. For related guidance, compare this profile with other circular hollow sections (CHS), review hollow-section terminology, and consult connection and detailing resources before preparing fabrication information.
Celsius 355 CHS 48.3×2.9
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 : 48.3 mm
Thickness : 2.9 mm
Sectional Area : 4.14 cm2
Unit Weight : 3.2 kg/m
How to read this CHS reference
The designation combines the Celsius 355 product family with the circular hollow section format and the listed diameter-by-thickness size. Diameter describes the circular outside dimension, while thickness describes the tube wall. These dimensions help identify the physical section for modeling, detailing, and section-property lookup.
The listed sectional area represents the steel area of the cross-section. The unit weight expresses the mass associated with a length of the section. Both values are useful when checking quantities, preparing material schedules, and coordinating preliminary design information, but final design checks must follow the requirements of the governing project specifications and design standard.
Standard and drafting context
The source cites EN 10210-2 for dimensions, tolerances, and sectional properties of hot-finished structural hollow sections, with EN 10210-1 identified as the related source for technical delivery conditions. Always verify that the selected standard, material designation, tolerances, and delivery requirements match the project documents.
The accompanying DWG file can support CAD coordination and drafting. Before using it for fabrication or construction documentation, check units, layer conventions, geometry, and any project-specific requirements. The drawing should be coordinated with connection details, end conditions, weld information, and the engineer’s approved design.
Frequently asked questions
What type of section is Celsius 355 CHS 48.3×2.9?
It is a circular hollow section listed under the Celsius 355 range. The source identifies a diameter of 48.3 mm and a thickness of 2.9 mm.
What does CHS mean?
CHS means circular hollow section. The term describes a hollow steel profile with a round cross-section and a continuous wall.
What information is provided for this profile?
The reference provides the diameter, thickness, sectional area, unit weight, cited EN 10210 standard context, and a DWG download.
Can the DWG be used directly for fabrication?
The DWG is a drafting resource. Confirm its units and geometry, then coordinate it with the approved design, connection details, tolerances, and project documentation before fabrication use.












