Back to All Sections

UB 457x279x177

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
482mm
Width (b):
286mm
Web thickness (tw):
16.6mm
Flange thickness (tf):
26.9mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
9.213E8
Z-axis:
1.051E8
Elastic section modulus (Wel):mm³
Y-axis:
3.823E6
Z-axis:
7.350E5
Plastic section modulus (Wpl):mm³
Y-axis:
4.334E6
Z-axis:
1.134E6
Radius of gyration (i):mm
Y-axis:
200
Z-axis:
67
Plastic shear area (Av):mm²
Y-axis:
15390
Z-axis:
8974
Weight per meter:
177kg/m
Area (A):
22840mm²
Surface area per meter:
2.04m²/m
Torsion constant (It):
4.726E6mm⁴
Warping constant (Iw):
5.430E12mm⁶

Profile overview for UB 457x279x177

The UB 457x279x177 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 482 mm and a flange width (b) of 286 mm, supported by a 16.6 mm thick web and 26.9 mm thick flanges. With a cross-sectional area of 22838.28 mm² and a linear mass of 177 kg/m, the UB 457x279x177 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 921300000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 4334000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 105100000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 457x279x177 provides a y-axis shear area (at strong bending axis) of 15386.8 mm² for web shear verification and a torsion constant of 4726000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 5430000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.