The UB 356x127x33 is a Universal Beam profile reference for structural steel detailing and section identification. This page pairs the authoritative dimensional data with practical guidance on reading the designation, understanding the listed properties, and using the associated CAD resource.
Use the source values below when checking drawings, preparing schedules, or comparing this beam with other Universal Beams. For design applications, confirm material requirements, loading, connection details, and code checks through the responsible engineer.
UB 356x127x33
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 : 349×125.4x6x8.5
Depth : 349 mm
Width : 125.4 mm
Web Thickness : 6 mm
Flange Thickness : 8.5 mm
Root Fillet Radius : 10 mm
Sectional Area : 42.1 cm2
Unit Weight : 33 kg/m
How to read the UB 356x127x33 reference
The designation identifies a Universal Beam series and its nominal mass designation. The detailed source block provides the actual profile dimensions, including overall depth, flange width, web thickness, flange thickness, and root fillet radius. These terms describe the geometry needed for section identification, drafting, fabrication coordination, and engineering calculations.
Dimensions and section properties
Depth is the overall vertical size of the section, while width describes the flange extent across the beam. The web forms the central vertical element; its thickness is listed separately from the flange thickness. The root fillet radius describes the curved transition between web and flange and should be considered when modeling clearances, end conditions, and connection details.
Sectional area is a geometric property used in calculations such as axial resistance and mass estimation. Unit weight supports material takeoffs and handling estimates. These values should be read together with the applicable material specification, design standard, fabrication tolerances, and project requirements rather than treated as a complete design check.
Standard and CAD reference
The page cites EN 10365:2017 as the dimensional reference for the profile family. The downloadable DWG can support drafting and coordination, but CAD geometry should be checked against the authoritative source data before fabrication or issue for construction. Related resources on steel section properties, beam connections, structural steel terminology, and DWG detailing practices can help place this profile in a broader engineering workflow.
Frequently asked questions
What does UB mean?
UB means Universal Beam, a rolled structural steel section with flanges and a connecting web. The profile designation distinguishes this section from other steel shape families.
What information is provided for UB 356x127x33?
The source content provides the profile dimensions, root fillet radius, sectional area, unit weight, cited dimensional standard, and a DWG download reference. The listed values are the authoritative local data for this page.
Why is the root fillet radius important?
The root fillet affects the transition between the web and flanges. It can matter when checking fit-up, detailing connections, modeling contact surfaces, or allowing clearance around the rolled section.
Can the DWG be used directly for structural design?
The DWG is a drafting reference, not a substitute for engineering verification. Confirm the profile geometry, material specification, tolerances, loading, connections, and applicable design requirements before relying on it for a project.
