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UB 406x140x53

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
406.6mm
Width (b):
143.3mm
Web thickness (tw):
7.9mm
Flange thickness (tf):
12.9mm
Radius (r):
10mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
1.827E8
Z-axis:
6.345E6
Elastic section modulus (Wel):mm³
Y-axis:
8.987E5
Z-axis:
88560
Plastic section modulus (Wpl):mm³
Y-axis:
1.030E6
Z-axis:
1.389E5
Radius of gyration (i):mm
Y-axis:
164
Z-axis:
30
Plastic shear area (Av):mm²
Y-axis:
3697
Z-axis:
3454
Weight per meter:
53.3kg/m
Area (A):
6800mm²
Surface area per meter:
1.353m²/m
Torsion constant (It):
2.885E5mm⁴
Warping constant (Iw):
2.451E11mm⁶

Profile overview for UB 406x140x53

The UB 406x140x53 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 406.6 mm and a flange width (b) of 143.3 mm, supported by a 7.9 mm thick web and 12.9 mm thick flanges. With a cross-sectional area of 6800 mm² and a linear mass of 53.3 kg/m, the UB 406x140x53 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 182700000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 1030000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 6345000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 406x140x53 provides a y-axis shear area (at strong bending axis) of 3697.14 mm² for web shear verification and a torsion constant of 288500 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 245100000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.