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UC 305x305x253

Production class: hot rolled (EN 10365)

Section geometry

UC shape
Height (h):
356mm
Width (b):
319mm
Web thickness (tw):
24.4mm
Flange thickness (tf):
39.6mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
6.848E8
Z-axis:
2.146E8
Elastic section modulus (Wel):mm³
Y-axis:
3.847E6
Z-axis:
1.345E6
Plastic section modulus (Wpl):mm³
Y-axis:
4.510E6
Z-axis:
2.061E6
Radius of gyration (i):mm
Y-axis:
145
Z-axis:
81
Plastic shear area (Av):mm²
Y-axis:
25260
Z-axis:
9647
Weight per meter:
253kg/m
Area (A):
32360mm²
Surface area per meter:
1.905m²/m
Torsion constant (It):
1.516E7mm⁴
Warping constant (Iw):
5.362E12mm⁶

Profile overview for UC 305x305x253

The UC 305x305x253 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 356 mm and a flange width (b) of 319 mm, supported by a 24.4 mm thick web and 39.6 mm thick flanges. With a cross-sectional area of 32360 mm² and a linear mass of 253 kg/m, the UC 305x305x253 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 684800000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 4510000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 214600000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UC 305x305x253 provides a y-axis shear area (at strong bending axis) of 25264.8 mm² for web shear verification and a torsion constant of 15160000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 5362000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.