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UB 457x279x158

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
476mm
Width (b):
284mm
Web thickness (tw):
15mm
Flange thickness (tf):
23.9mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
8.075E8
Z-axis:
9.141E7
Elastic section modulus (Wel):mm³
Y-axis:
3.393E6
Z-axis:
6.437E5
Plastic section modulus (Wpl):mm³
Y-axis:
3.828E6
Z-axis:
9.920E5
Radius of gyration (i):mm
Y-axis:
199
Z-axis:
67
Plastic shear area (Av):mm²
Y-axis:
13580
Z-axis:
8080
Weight per meter:
158kg/m
Area (A):
20340mm²
Surface area per meter:
2.024m²/m
Torsion constant (It):
3.372E6mm⁴
Warping constant (Iw):
4.662E12mm⁶

Profile overview for UB 457x279x158

The UB 457x279x158 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 476 mm and a flange width (b) of 284 mm, supported by a 15 mm thick web and 23.9 mm thick flanges. With a cross-sectional area of 20341.56 mm² and a linear mass of 158 kg/m, the UB 457x279x158 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 807500000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 3828000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 91410000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 457x279x158 provides a y-axis shear area (at strong bending axis) of 13575.2 mm² for web shear verification and a torsion constant of 3372000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 4662000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.