UBP 305x305x186

Production class: hot rolled (EN 10365)

Section geometry

UBP shape
Height (h):
328.3mm
Width (b):
320.9mm
Web thickness (tw):
25.5mm
Flange thickness (tf):
25.6mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
4.286E8
Z-axis:
1.414E8
Elastic section modulus (Wel):mm³
Y-axis:
2.611E6
Z-axis:
8.817E5
Plastic section modulus (Wpl):mm³
Y-axis:
3.022E6
Z-axis:
1.369E6
Radius of gyration (i):mm
Y-axis:
134
Z-axis:
77
Plastic shear area (Av):mm²
Y-axis:
16430
Z-axis:
9086

Weight per meter:
186kg/m
Area (A):
23690mm²
Surface area per meter:
1.855m²/m
Torsion constant (It):
5.833E6mm⁴
Warping constant (Iw):
3.229E12mm⁶

Profile overview for UBP 305x305x186

The UBP 305x305x186 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 328.3 mm and a flange width (b) of 320.9 mm, supported by a 25.5 mm thick web and 25.6 mm thick flanges. With a cross-sectional area of 23690 mm² and a linear mass of 186 kg/m, the UBP 305x305x186 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 428600000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 3022000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 141400000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UBP 305x305x186 provides a y-axis shear area (at strong bending axis) of 16430.08 mm² for web shear verification and a torsion constant of 5833000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 3229000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.