The RHS 80x40x2 is a cold-formed welded rectangular steel tube with an 80 mm depth, 40 mm width, and 2 mm wall thickness. This reference brings together its listed dimensional data, corner radii, sectional area, unit weight, standard reference, and CAD download.
Use the designation as a quick identification key: the first two values describe the rectangular outside dimensions, while the final value identifies the wall thickness. Always review the complete project requirements and verified section properties before using the profile in design or detailing.
RHS 80x40x2
Cold Formed Welded Rectangular 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 : 80x40x2
Depth : 80 mm
Width : 40 mm
Thickness : 2 mm
Outer Corner Radius : 4 mm
Inner Corner Radius : 2 mm
Sectional Area : 4.54 cm2
Unit Weight : 3.6 kg/m
Understanding the RHS 80x40x2 designation
RHS means rectangular hollow section. The hollow geometry gives the member two principal bending directions, with different behavior associated with its depth and width. The listed 80 mm depth and 40 mm width identify the section orientation used in this reference, while the 2 mm thickness describes the tube wall.
The profile is identified as a cold-formed welded rectangular steel tube. Cold forming shapes the steel into the rectangular section, and welding closes the formed strip into a tube. This manufacturing route is relevant when reviewing dimensional tolerances, corner geometry, fabrication details, and material documentation.
Corner radii and section data
The specified outer corner radius is 4 mm and the inner corner radius is 2 mm. Corner radii are part of the physical section geometry; they affect how the outside dimensions relate to the flat faces and how the section should be represented in drawings or CAD models.
The listed sectional area is 4.54 cm2, while the unit weight is 3.6 kg/m. These are different reference values: sectional area describes the amount of steel in a cross-section, whereas unit weight describes the mass associated with each metre of length. Do not substitute one for the other when checking quantities or design inputs.
Standard reference
The source refers to EN 10219-2, which addresses tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections made from non-alloy and fine grain steels. It complements EN 10219-1, which covers technical delivery conditions. See the site’s EN 10219-2 reference for related terminology and standard context.
Using the section in drawings and references
The downloadable DWG provides a practical starting point for drafting and coordination. Confirm the drawing units, layer conventions, insertion scale, and project-specific detailing requirements after download. For broader drafting guidance, connect this profile with the site’s CAD and DWG resources and steel terminology reference.
RHS 80x40x2 FAQ
What does RHS 80x40x2 mean?
It identifies a rectangular hollow section with an 80 mm depth, 40 mm width, and 2 mm wall thickness.
What are the listed corner radii?
The listed outer corner radius is 4 mm, and the listed inner corner radius is 2 mm.
What is the sectional area of RHS 80x40x2?
The source lists a sectional area of 4.54 cm2.
What is the unit weight?
The listed unit weight is 3.6 kg/m. This value is a mass-per-length reference and should not be confused with sectional area.
Which standard is referenced?
The profile reference points to EN 10219-2 for tolerances, dimensions, and sectional properties, alongside EN 10219-1 for technical delivery conditions.
Is a DWG file available?
Yes. The page includes a download for the RHS-80x40x2 DWG file. Check units and drawing conventions before incorporating it into project documentation.
