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UB 457x279x349

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
535mm
Width (b):
296mm
Web thickness (tw):
29.5mm
Flange thickness (tf):
53.6mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
2.054E9
Z-axis:
2.327E8
Elastic section modulus (Wel):mm³
Y-axis:
7.676E6
Z-axis:
1.572E6
Plastic section modulus (Wpl):mm³
Y-axis:
9.059E6
Z-axis:
2.447E6
Radius of gyration (i):mm
Y-axis:
214
Z-axis:
72
Plastic shear area (Av):mm²
Y-axis:
31730
Z-axis:
16680
Weight per meter:
349kg/m
Area (A):
44690mm²
Surface area per meter:
2.161m²/m
Torsion constant (It):
3.410E7mm⁴
Warping constant (Iw):
1.342E13mm⁶

Profile overview for UB 457x279x349

The UB 457x279x349 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 535 mm and a flange width (b) of 296 mm, supported by a 29.5 mm thick web and 53.6 mm thick flanges. With a cross-sectional area of 44694.66 mm² and a linear mass of 349 kg/m, the UB 457x279x349 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 2053500000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 9059000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 232700000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 457x279x349 provides a y-axis shear area (at strong bending axis) of 31731.2 mm² for web shear verification and a torsion constant of 34100000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 13420000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.