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UB 1100x400x548

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
1128mm
Width (b):
407mm
Web thickness (tw):
28mm
Flange thickness (tf):
50mm
Radius (r):
30mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
1.457E10
Z-axis:
5.640E8
Elastic section modulus (Wel):mm³
Y-axis:
2.582E7
Z-axis:
2.771E6
Plastic section modulus (Wpl):mm³
Y-axis:
2.972E7
Z-axis:
4.358E6
Radius of gyration (i):mm
Y-axis:
455
Z-axis:
89
Plastic shear area (Av):mm²
Y-axis:
40700
Z-axis:
33950
Weight per meter:
548kg/m
Area (A):
69830mm²
Surface area per meter:
3.776m²/m
Torsion constant (It):
4.344E7mm⁴
Warping constant (Iw):
1.632E14mm⁶

Profile overview for UB 1100x400x548

The UB 1100x400x548 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 1128 mm and a flange width (b) of 407 mm, supported by a 28 mm thick web and 50 mm thick flanges. With a cross-sectional area of 69830 mm² and a linear mass of 548 kg/m, the UB 1100x400x548 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 14566400000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 29720000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 564000000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 1100x400x548 provides a y-axis shear area (at strong bending axis) of 40700 mm² for web shear verification and a torsion constant of 43440000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 163220000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.