Universal Beams - 533x312x151

United Kingdom Universal Beams (UB), often called I-beams, are structural steel elements with an 'I' or 'H' shaped cross-section designed to carry high bending loads. They are primarily employed in structural engineering and construction scenarios where long spans and significant load-bearing capacity are required without excessive weight. You will commonly find them used as primary horizontal supports in multi-storey buildings, commercial warehouses, and industrial frameworks to transfer floor and roof loads to columns. They are also heavily utilized in residential renovations, such as creating open-plan living spaces by supporting upper floors when load-bearing walls are removed. Additionally, UBs serve as critical components in civil engineering projects, including bridge decks, gantries, and temporary shoring systems for deep excavations, because their design maximizes efficiency by placing the steel exactly where the bending stresses are highest.

Dimensions

PropertyValue
kg/m150.6
D mm542.5
B mm312
t mm12.7
T mm20.3
r mm12.7
d mm476.5
b/T7.68
d/t37.5
C mm8
N mm160
n mm34
m22.29
m215.2

Full sortable table: Dimensions table for this category

Section Properties

PropertyValue
Second Moment of Area (x-x) - cm4101000
Second Moment of Area (y-y) - cm410300
Radius of Gyration (x-x) - cm22.9
Radius of Gyration (y-y) - cm7.32
Elastic Modulus (x-x) - cm33710
Elastic Modulus (y-y) - cm3659
Plastic Modulus (x-x) - cm34150
Plastic Modulus (y-y) - cm31010
Buckling Parameter - u0.885
Torsional Index - x27.9
Warping Constant - H dm67.01
Torsional Constant - J cm4216
Area of Section - A cm2192

Full sortable table: Properties table for this category