The UB 305x165x46 is a Universal Beam profile listed with dimensional and sectional data for structural steel reference work. This page brings the profile description, terminology, standard reference, and CAD resource together for engineers, detailers, and estimators.
Use the existing values below when checking drawings, comparing steel sections, or preparing preliminary detailing. For design decisions, confirm the material grade, loading, restraint, connection arrangement, and applicable project requirements separately.
UB 305x165x46
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 : 306.6×165.7×6.7×11.8
Depth : 306.6 mm
Width : 165.7 mm
Web Thickness : 6.7 mm
Flange Thickness : 11.8 mm
Root Fillet Radius : 8.9 mm
Sectional Area : 58.7 cm2
Unit Weight : 46.1 kg/m
How to read the UB 305x165x46 reference
The dimension string describes the principal profile dimensions in the same order as the source labels: overall depth, flange width, web thickness, and flange thickness. The listed root fillet radius describes the curved transition between the web and flange, which is important when considering clear detailing space and CAD geometry.
The sectional area and unit weight are useful for quantity takeoffs, member self-weight checks, and comparing this Universal Beam with other steel section properties. They should not be treated as a substitute for a complete resistance or stability check.
Standard and drafting reference
The source identifies EN 10365:2017 as the reference for the profile dimensions, tolerances, and sectional properties. When using this information in a project, compare the supplied section data with the project specification and the steel supplier’s documentation.
A DWG file is provided with this reference. It can support drawing production and preliminary layout work, while the final model or fabrication detail should be checked against the governing project information. Related topics such as Universal Beam terminology, steel connection detailing, and structural steel CAD resources can help place this profile in a broader drafting workflow.
Frequently asked questions
What does UB mean?
UB means Universal Beam, a hot-rolled structural steel beam designation used for I-shaped sections with parallel flanges.
How is the dimension string interpreted?
For this reference, the dimension string follows the source order of depth, width, web thickness, and flange thickness. The root fillet radius is provided separately.
What are the section area and unit weight used for?
Sectional area supports quantity and section-property reference work, while unit weight supports member mass and self-weight calculations. Project-specific design checks are still required.
Can the DWG be used directly for fabrication?
The downloadable DWG is a drafting reference. Check its geometry, units, project revisions, material requirements, and fabrication details before issuing any production information.
What should be verified before specifying this beam?
Verify the required section data, material grade, design actions, span and restraint conditions, connection details, corrosion protection, and applicable project standards with the responsible engineer.
