The UB 305x127x42 entry provides the dimensional and section-property data needed to identify this Universal Beam profile. The designation is paired with a detailed dimension line covering depth, width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight.
Use the values in the reference listing when coordinating steel schedules, preliminary drafting, section comparisons, or CAD work. For structural design, confirm the selected section against the governing project requirements, material specification, loading, stability checks, and connection details.
UB 305x127x42
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 : 307.2×124.3x8x12.1
Depth : 307.2 mm
Width : 124.3 mm
Web Thickness : 8 mm
Flange Thickness : 12.1 mm
Root Fillet Radius : 8.9 mm
Sectional Area : 53.4 cm2
Unit Weight : 41.9 kg/m
How to read the UB 305x127x42 reference
Designation and dimensions
The designation identifies the Universal Beam section, while the individual dimension fields provide the geometry needed for checking clearances, detailing, and compatibility with related steelwork. The listed dimensions should be treated as the controlling local reference for this page rather than inferred from the section name alone.
Section properties and detailing
The reference includes sectional area and unit weight alongside the principal dimensions. Sectional area is useful when comparing profiles and reviewing material takeoffs, while unit weight supports mass estimates and handling coordination. The root fillet radius is especially relevant where plates, stiffeners, connections, or adjacent components must fit close to the beam profile.
Standard reference
The page identifies EN 10365:2017 as the referenced European standard for the dimensional and sectional-property framework. Always check the project specification and approved material documentation before procurement or fabrication.
DWG download and CAD coordination
The linked DWG resource can support drafting and model coordination. Before inserting it into a project, confirm drawing units, insertion scale, layer conventions, and the orientation of the section. CAD geometry is a coordination aid and does not replace engineering verification of the member, connections, or fabrication details.
Related steel reference topics
Useful companion topics for this entry include Universal Beam terminology, steel section properties, beam connections and detailing, and structural steel CAD/DWG resources. Linking these subjects helps readers move from profile identification to practical design and drafting guidance.
Frequently asked questions
What does UB 305x127x42 identify?
It identifies a Universal Beam profile. Use the detailed dimensions in the reference listing to confirm the actual geometry required for drafting, comparison, and coordination.
What information is provided for this beam?
The entry provides the referenced standard, principal dimensions, web and flange thicknesses, root fillet radius, sectional area, and unit weight, followed by a DWG download.
Can the listed unit weight be used to determine beam capacity?
No. Unit weight supports mass and material-takeoff calculations, but member capacity also depends on material, span, loading, restraint, stability, limit states, and connection conditions. Those checks require project-specific engineering.
What should be checked before using the DWG file?
Verify the drawing scale, units, section orientation, and project CAD conventions. Compare the geometry with the authoritative reference listing before using the file for fabrication or detailed design.
