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UC 305x305x158

Production class: hot rolled (EN 10365)

Section geometry

UC shape
Height (h):
327.1mm
Width (b):
311.2mm
Web thickness (tw):
15.8mm
Flange thickness (tf):
25mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
3.900E8
Z-axis:
1.257E8
Elastic section modulus (Wel):mm³
Y-axis:
2.384E6
Z-axis:
8.079E5
Plastic section modulus (Wpl):mm³
Y-axis:
2.699E6
Z-axis:
1.232E6
Radius of gyration (i):mm
Y-axis:
138
Z-axis:
78
Plastic shear area (Av):mm²
Y-axis:
15560
Z-axis:
6116
Weight per meter:
158kg/m
Area (A):
20140mm²
Surface area per meter:
1.833m²/m
Torsion constant (It):
3.939E6mm⁴
Warping constant (Iw):
2.865E12mm⁶

Profile overview for UC 305x305x158

The UC 305x305x158 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 327.1 mm and a flange width (b) of 311.2 mm, supported by a 15.8 mm thick web and 25 mm thick flanges. With a cross-sectional area of 20140 mm² and a linear mass of 158 kg/m, the UC 305x305x158 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 390000000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 2699000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 125700000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UC 305x305x158 provides a y-axis shear area (at strong bending axis) of 15560 mm² for web shear verification and a torsion constant of 3939000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 2865000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.