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UB 690x360x240

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
701mm
Width (b):
356mm
Web thickness (tw):
16.8mm
Flange thickness (tf):
27.4mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
2.627E9
Z-axis:
2.063E8
Elastic section modulus (Wel):mm³
Y-axis:
7.494E6
Z-axis:
1.159E6
Plastic section modulus (Wpl):mm³
Y-axis:
8.433E6
Z-axis:
1.786E6
Radius of gyration (i):mm
Y-axis:
292
Z-axis:
81
Plastic shear area (Av):mm²
Y-axis:
19510
Z-axis:
12750
Weight per meter:
240kg/m
Area (A):
30710mm²
Surface area per meter:
2.758m²/m
Torsion constant (It):
6.272E6mm⁴
Warping constant (Iw):
2.337E13mm⁶

Profile overview for UB 690x360x240

The UB 690x360x240 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 701 mm and a flange width (b) of 356 mm, supported by a 16.8 mm thick web and 27.4 mm thick flanges. With a cross-sectional area of 30708.32 mm² and a linear mass of 240 kg/m, the UB 690x360x240 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 2626800000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 8433000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 206300000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 690x360x240 provides a y-axis shear area (at strong bending axis) of 19508.8 mm² for web shear verification and a torsion constant of 6272000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 23370000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.