The UB 406x140x39 is a Universal Beam reference entry for checking profile dimensions, basic section data, and the associated CAD resource. Use the values in the technical listing as the controlling local reference when preparing drawings, schedules, or preliminary comparisons.
For broader terminology, see the Universal Beams reference and the guide to steel section properties. These resources help explain how beam geometry and section data are used in engineering documentation without replacing project-specific design verification.
UB 406x140x39
Universal Beams
refer to : EN 10365:2017
a European standard that defines the dimensions, tolerances, and sectional properties for hot-rolled steel channels, I-beams, and H-beams used in construction and engineering. It ensures uniformity and compatibility across European structural steel products.
Dimension : 398×141.8×6.4×8.6
Depth : 398 mm
Width : 141.8 mm
Web Thickness : 6.4 mm
Flange Thickness : 8.6 mm
Root Fillet Radius : 10 mm
Sectional Area : 49.7 cm2
Unit Weight : 39 kg/m
How to read this UB reference
The designation identifies the profile covered by this entry, while the dimension line and individual geometry fields describe the rolled section. The listing reports the depth, width, web thickness, flange thickness, and root fillet radius separately so each part of the cross-section can be checked against drawings or modeling data.
Geometry and section data
Depth and width describe the overall envelope of the section. Web and flange thicknesses describe the principal plate elements, while the root fillet radius identifies the curved transition between the web and flange. These details are important when checking clearances, connection detailing, fabrication drawings, and CAD geometry.
The sectional area and unit weight provide different types of reference information. Sectional area describes the amount of steel represented by the cross-section, while unit weight supports material takeoff and schedule review. They should not be treated as a substitute for the complete section-property data required for structural analysis.
Standard and CAD reference
This entry refers to EN 10365:2017, as stated in the source content. Use the listed standard reference together with the project specification and applicable design requirements when confirming procurement or detailing information. The linked DWG can support drafting and coordination, but imported geometry should be checked against the authoritative dimensions before release.
For related drafting resources, visit the structural steel CAD and DWG reference.
Frequently asked questions
What information is provided for the UB 406x140x39?
The entry provides the profile designation, standard reference, overall dimension line, individual geometric dimensions, root fillet radius, sectional area, unit weight, and a DWG download link.
What does the root fillet radius describe?
It describes the rounded transition between the web and flange of the rolled beam. This geometry can matter when checking connection detailing, clearances, and the accuracy of CAD or fabrication drawings.
Can the DWG file be used directly for structural design?
The DWG is a drafting and coordination resource. Confirm its geometry against the source dimensions and project requirements, and obtain engineering verification before using the profile in a structural design.
Why are both sectional area and unit weight listed?
They serve different reference purposes: sectional area describes the cross-section, while unit weight supports material quantity and schedule checks. Neither replaces the full set of section properties required for design.
