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UC 305x305x137

Production class: hot rolled (EN 10365)

Section geometry

UC shape
Height (h):
320.5mm
Width (b):
309.2mm
Web thickness (tw):
13.8mm
Flange thickness (tf):
21.7mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
3.306E8
Z-axis:
1.070E8
Elastic section modulus (Wel):mm³
Y-axis:
2.063E6
Z-axis:
6.922E5
Plastic section modulus (Wpl):mm³
Y-axis:
2.315E6
Z-axis:
1.054E6
Radius of gyration (i):mm
Y-axis:
137
Z-axis:
78
Plastic shear area (Av):mm²
Y-axis:
13420
Z-axis:
5334
Weight per meter:
137kg/m
Area (A):
17440mm²
Surface area per meter:
1.816m²/m
Torsion constant (It):
2.613E6mm⁴
Warping constant (Iw):
2.386E12mm⁶

Profile overview for UC 305x305x137

The UC 305x305x137 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 320.5 mm and a flange width (b) of 309.2 mm, supported by a 13.8 mm thick web and 21.7 mm thick flanges. With a cross-sectional area of 17440 mm² and a linear mass of 137 kg/m, the UC 305x305x137 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 330600000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 2315000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 107000000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UC 305x305x137 provides a y-axis shear area (at strong bending axis) of 13419.28 mm² for web shear verification and a torsion constant of 2613000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 2386000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.