The UB 203x133x25 is a Universal Beam reference section with source data for its overall dimensions, web and flange thicknesses, root fillet radius, sectional area, and unit weight. Use the dimensional block below as the controlling local reference for this profile.
This page is intended to support steel detailing, preliminary section comparison, and CAD coordination. For broader terminology, compare this entry with related Universal Beam and structural steel section properties references on SteelSTD.
UB 203x133x25
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 : 203.2×133.2×5.7×7.8
Depth : 203.2 mm
Width : 133.2 mm
Web Thickness : 5.7 mm
Flange Thickness : 7.8 mm
Root Fillet Radius : 8 mm
Sectional Area : 32 cm2
Unit Weight : 25.1 kg/m
How to read the UB 203x133x25 reference
The designation identifies a Universal Beam profile, while the detailed dimension line and individual property entries provide the information needed to recognize the section in drawings and reference checks. The listed depth and width describe the overall envelope. Web thickness and flange thickness describe the principal plate elements, while the root fillet radius identifies the transition between the web and flange.
Section properties and practical use
The source block also lists sectional area and unit weight. These values are useful when comparing steel sections, preparing material takeoffs, and coordinating a member schedule. They should not be treated as a complete structural design check: member resistance, stability, connection behavior, fabrication requirements, and applicable project criteria require verification by a qualified engineer.
Standard and CAD reference
The entry refers to EN 10365:2017 for the profile reference framework. The downloadable DWG can support drafting and coordination, but users should check the drawing against the dimensional data and project documentation before issuing fabrication or construction information. Related internal resources may include EN 10365 section references, steel beam terminology, and structural steel CAD blocks.
FAQ
What does UB mean in UB 203x133x25?
UB means Universal Beam. The designation identifies the beam profile, while the reference dimensions below provide its detailed geometry.
What information is provided for this section?
The entry provides the profile dimensions, depth, width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight, together with a reference to EN 10365:2017.
Can the DWG file be used directly for fabrication?
The DWG is a drafting and coordination resource. Confirm its geometry against the source data, project requirements, and reviewed engineering documentation before using it for fabrication or construction.
Does this page confirm that the section is suitable for a structural design?
No. Section suitability depends on the design actions, span, restraints, connections, material specification, stability checks, and governing project requirements. A qualified engineer should verify the complete application.
