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UB 457x279x128

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
467mm
Width (b):
282mm
Web thickness (tw):
12.2mm
Flange thickness (tf):
19.6mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
6.481E8
Z-axis:
7.336E7
Elastic section modulus (Wel):mm³
Y-axis:
2.776E6
Z-axis:
5.203E5
Plastic section modulus (Wpl):mm³
Y-axis:
3.102E6
Z-axis:
7.988E5
Radius of gyration (i):mm
Y-axis:
197
Z-axis:
66
Plastic shear area (Av):mm²
Y-axis:
11050
Z-axis:
6585
Weight per meter:
128kg/m
Area (A):
16620mm²
Surface area per meter:
2.003m²/m
Torsion constant (It):
1.891E6mm⁴
Warping constant (Iw):
3.665E12mm⁶

Profile overview for UB 457x279x128

The UB 457x279x128 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 467 mm and a flange width (b) of 282 mm, supported by a 12.2 mm thick web and 19.6 mm thick flanges. With a cross-sectional area of 16616.92 mm² and a linear mass of 128 kg/m, the UB 457x279x128 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 648100000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 3102000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 73360000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 457x279x128 provides a y-axis shear area (at strong bending axis) of 11054.4 mm² for web shear verification and a torsion constant of 1891000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 3665000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.