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UB 457x279x260

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
509mm
Width (b):
289mm
Web thickness (tw):
22.6mm
Flange thickness (tf):
40.4mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
1.448E9
Z-axis:
1.630E8
Elastic section modulus (Wel):mm³
Y-axis:
5.689E6
Z-axis:
1.128E6
Plastic section modulus (Wpl):mm³
Y-axis:
6.579E6
Z-axis:
1.747E6
Radius of gyration (i):mm
Y-axis:
208
Z-axis:
69
Plastic shear area (Av):mm²
Y-axis:
23350
Z-axis:
12540
Weight per meter:
260kg/m
Area (A):
33370mm²
Surface area per meter:
2.094m²/m
Torsion constant (It):
1.478E7mm⁴
Warping constant (Iw):
8.922E12mm⁶

Profile overview for UB 457x279x260

The UB 457x279x260 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 509 mm and a flange width (b) of 289 mm, supported by a 22.6 mm thick web and 40.4 mm thick flanges. With a cross-sectional area of 33371.88 mm² and a linear mass of 260 kg/m, the UB 457x279x260 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 1448000000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 6579000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 163000000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 457x279x260 provides a y-axis shear area (at strong bending axis) of 23351.2 mm² for web shear verification and a torsion constant of 14780000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 8922000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.