Back to All Sections

UB 457x191x74

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
457mm
Width (b):
190.4mm
Web thickness (tw):
9mm
Flange thickness (tf):
14.5mm
Radius (r):
10mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
3.330E8
Z-axis:
1.671E7
Elastic section modulus (Wel):mm³
Y-axis:
1.457E6
Z-axis:
1.755E5
Plastic section modulus (Wpl):mm³
Y-axis:
1.651E6
Z-axis:
2.720E5
Radius of gyration (i):mm
Y-axis:
187
Z-axis:
42
Plastic shear area (Av):mm²
Y-axis:
5522
Z-axis:
4358
Weight per meter:
74.3kg/m
Area (A):
9460mm²
Surface area per meter:
1.64m²/m
Torsion constant (It):
5.167E5mm⁴
Warping constant (Iw):
8.165E11mm⁶

Profile overview for UB 457x191x74

The UB 457x191x74 is a structural steel cross-section utilized in commercial construction, industrial framing, and mechanical engineering. Manufactured as a hot rolled section, it complies with EN 10365 dimensional standards, ensuring predictability in detailing and fabrication.Access to its exact geometric and statical properties is essential for 3D modeling and structural verification.

Geometry: This open profile features a total depth (h) of 457 mm and a flange width (b) of 190.4 mm, supported by a 9 mm thick web and 14.5 mm thick flanges. With a cross-sectional area of 9460 mm² and a linear mass of 74.3 kg/m, the UB 457x191x74 offers a distinct stiffness-to-weight ratio for both column (axial) and beam applications.

Section properties: For design of bending, the major and minor axis properties dictate the member's structural capacity. The strong-axis moment of inertia (Iy) of 333000000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 1651000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 16710000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 457x191x74 provides a y-axis shear area (at strong bending axis) of 5521.6 mm² for web shear verification and a torsion constant of 516700 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 816500000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.