SHS 70x70x3 is a cold-formed welded square hollow section with a square outside profile and a 3 mm wall thickness. This reference brings together the source dimensions, corner radii, sectional area, unit weight, applicable standard context, and a downloadable DWG resource for drafting workflows.
SHS 70x70x3
Cold Formed Welded Square Steel Tubes
refer to : EN 10219-2
the European standard that specifies tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections made of non-alloy and fine grain steels. It complements EN 10219-1, which covers technical delivery conditions.
Dimension : 70x70x3
Depth : 70 mm
Width : 70 mm
Thickness : 3 mm
Outer Corner Radius : 6 mm
Inner Corner Radius : 3 mm
Sectional Area : 7.81 cm2
Unit Weight : 6.1 kg/m
How to read the SHS 70x70x3 reference
The designation identifies a square hollow section by its outside dimensions and wall thickness. For this section, the listed depth and width are equal, producing a square profile. The corner radius fields describe the rounded transitions between the flat faces; these details can matter when preparing accurate CAD geometry or checking clearances at connections.
The sectional area and unit weight are useful reference properties for material takeoff and preliminary comparison with other hollow sections. They should be read together with the source dimensions and applied within the requirements of the relevant design, fabrication, and connection checks. The listed standard context is EN 10219-2, which addresses dimensions, tolerances, and sectional properties for cold-formed welded structural hollow sections; technical delivery conditions are associated with EN 10219-1.
Drafting and reference use
- Use the listed outside dimensions, wall thickness, and corner radii when developing a representative section profile.
- Use the DWG download for drawing coordination, then verify the inserted geometry against the authoritative source values before issuing design documents.
- When comparing alternatives, distinguish geometric dimensions from derived section properties and material-weight data.
- Review related SHS sizes, hollow-section terminology, and connection-detailing guidance to support consistent modeling and documentation.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It describes a hollow steel profile with a square outside shape.
What does 70x70x3 identify?
The designation identifies the section’s listed outside depth, outside width, and wall thickness. The source entry also provides the corresponding corner radii, sectional area, and unit weight.
Which standard is referenced for this section?
The source references EN 10219-2 for dimensions, tolerances, and sectional properties of cold-formed welded structural hollow sections. It also notes the relationship with EN 10219-1 for technical delivery conditions.
What is the DWG file used for?
The DWG file provides a CAD reference for drafting and coordination. Confirm the geometry and project requirements before using it in issued design or fabrication documentation.
Can the listed unit weight be used as a final project quantity?
It can support preliminary takeoff and comparison, but final quantities should account for the project’s specified material, procurement information, fabrication details, and applicable tolerances.
