UB 305x165x40 is a Universal Beam designation used to identify a hot-rolled structural steel section. This reference entry brings together the source geometry, sectional data, standard context, and the related DWG resource in one place.
Use the dimensions below when checking drawings, comparing section references, or coordinating steelwork information. The published values are the controlling local reference for this page; design decisions should be verified against the applicable project requirements and engineering checks.
UB 305x165x40
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 : 303.4x165x6x10.2
Depth : 303.4 mm
Width : 165 mm
Web Thickness : 6 mm
Flange Thickness : 10.2 mm
Root Fillet Radius : 8.9 mm
Sectional Area : 51.3 cm2
Unit Weight : 40.3 kg/m
How to read this Universal Beam reference
The source content identifies the section through its depth, width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight. Together, these terms describe the overall envelope, the main plate elements, the transition between web and flange, and the section data used in engineering calculations.
Geometry and detailing context
Depth and width help coordinate the beam with surrounding framing, openings, supports, and connection details. Web thickness and flange thickness are important when reviewing connection layouts, fabrication notes, bearing arrangements, and clearances. The root fillet radius should also be considered where a plate, fitting, or connection component approaches the rolled profile.
Sectional data and coordination
Sectional area is useful for comparing the amount of steel in a profile and for calculation workflows that depend on the cross-sectional geometry. Unit weight supports material takeoff and self-weight review. These values should not be treated as a substitute for the complete section-property requirements of a particular design check.
Standard and CAD reference
The entry refers to EN 10365:2017, which provides the dimensional and product-reference framework identified in the source content for hot-rolled steel channels, I-beams, and H-beams. The downloadable DWG can support drafting and coordination, but the drawing should be checked against the project specification and the authoritative section data before fabrication or construction use.
This page connects naturally with related references on Universal Beams, steel section terminology, section properties, connection detailing, and CAD/DWG coordination.
Frequently asked questions
What is UB 305x165x40?
It is a Universal Beam designation for the steel section documented in this reference entry. The source lists its geometry, sectional area, unit weight, and related standard reference.
Which standard is referenced for this section?
The source refers to EN 10365:2017 for the dimensions, tolerances, and sectional information associated with the listed hot-rolled steel section.
What do web thickness and flange thickness describe?
Web thickness describes the thickness of the central connecting element, while flange thickness describes the thickness of the projecting top and bottom elements. Both are relevant to detailing and connection coordination.
Why is the root fillet radius included?
The root fillet is the curved transition where the web and flange meet in a rolled section. Its geometry can affect clearances and the fit of nearby plates, fittings, and connection components.
What is the purpose of the DWG download?
The DWG provides a CAD reference for drafting and coordination. It should be reviewed against the source dimensions and project requirements before it is used for fabrication or construction documentation.
