UBP 406x406x151

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

394mm

Width (b):

400mm

Web thickness (t_w):

15.9mm

Flange thickness (t_f):

15.9mm

Radius (r):

20mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

5.285E8

Z-axis:

1.697E8

Elastic section modulus (W_el):mm³

Y-axis:

2.683E6

Z-axis:

8.488E5

Plastic section modulus (W_pl):mm³

Y-axis:

2.986E6

Z-axis:

1.299E6

Radius of gyration (i):mm

Y-axis:

167

Z-axis:

Plastic shear area (A_v):mm²

Y-axis:

12720

Z-axis:

6991

Weight per meter:

151kg/m

Area (A):

18820mm²

Surface area per meter:

2.322m²/m

Torsion constant (I_t):

1.797E6mm⁴

Warping constant (I_w):

6.061E12mm⁶

Profile overview for UBP 406x406x151

The UBP 406x406x151 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 394 mm and a flange width (b) of 400 mm, supported by a 15.9 mm thick web and 15.9 mm thick flanges. With a cross-sectional area of 18820 mm² and a linear mass of 151 kg/m, the UBP 406x406x151 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 (I_y) of 528500000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 2986000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 169700000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UBP 406x406x151 provides a y-axis shear area (at strong bending axis) of 12720 mm² for web shear verification and a torsion constant of 1797000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 6061000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.