The UB 254x146x31 is a Universal Beam designation used to identify a hot-rolled structural steel section. This reference lists its measured dimensions, sectional area, unit weight, and the EN 10365:2017 standard cited for the profile.
Use the dimensions below when reviewing drawings, comparing section schedules, or checking that a CAD representation matches the published reference. The designation should be read together with the detailed dimensions rather than treated as a substitute for the full section data.
UB 254x146x31
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 : 251.4×146.1x6x8.6
Depth : 251.4 mm
Width : 146.1 mm
Web Thickness : 6 mm
Flange Thickness : 8.6 mm
Root Fillet Radius : 8 mm
Sectional Area : 39.7 cm2
Unit Weight : 31.2 kg/m
Understanding the UB 254x146x31 data
The listed dimension format identifies the section’s depth, overall width, web thickness, and flange thickness. The separate entries make each part of the profile easier to verify during drafting and detailing.
- Depth and width: These describe the overall envelope of the section and help with layout, clearance, and connection detailing.
- Web and flange thickness: These describe the principal plate elements of the I-shaped profile and should be checked when coordinating plates, bolts, welds, and openings.
- Root fillet radius: The fillet is the curved transition between the web and flange. It is important when a connection or fitted component must sit close to the section corner.
- Sectional area and unit weight: These are reference properties for quantity review and engineering calculations. Final member selection and design checks require the applicable project criteria and complete section-property data.
Using the reference in drawings and models
When preparing a detail, compare the listed dimensions with the selected profile in the model or drawing. Allow for the root fillet where plates, stiffeners, seats, or other components approach the web-to-flange transition. The available DWG download can help with drafting coordination, but the downloaded geometry should still be checked against the authoritative dimensions on this page.
For related research, connect this profile with references covering Universal Beam terminology, steel section dimensions, section properties, and structural steel connection detailing. These topics help distinguish geometric reference data from the project-specific checks required for fabrication and design.
Frequently asked questions
What does UB 254x146x31 mean?
It is the designation for a Universal Beam profile. The detailed source data on this page provides the section dimensions, sectional area, and unit weight associated with the designation.
Which standard is referenced for this section?
The page references EN 10365:2017 for the dimensional and sectional information. Always confirm that the project specification and procurement documentation require the same reference.
Why is the root fillet radius important?
The root fillet is the rounded transition between the web and flange. It can affect how closely connection components, plates, and detailing features can approach that corner.
Can the DWG file be used directly for fabrication?
The DWG is useful as a drafting reference, but it should be reviewed against the published dimensions and coordinated with project-specific fabrication, connection, and design requirements before use.
Is the unit weight enough to design a beam?
No. Unit weight supports quantity and weight review, but member design requires the relevant section properties, loads, restraints, connection conditions, material requirements, and applicable design checks.
