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UB 690x360x548

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
772mm
Width (b):
372mm
Web thickness (tw):
35.1mm
Flange thickness (tf):
63mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
6.729E9
Z-axis:
5.430E8
Elastic section modulus (Wel):mm³
Y-axis:
1.743E7
Z-axis:
2.919E6
Plastic section modulus (Wpl):mm³
Y-axis:
2.038E7
Z-axis:
4.565E6
Radius of gyration (i):mm
Y-axis:
310
Z-axis:
88
Plastic shear area (Av):mm²
Y-axis:
46872
Z-axis:
27740
Weight per meter:
548kg/m
Area (A):
69890mm²
Surface area per meter:
2.927m²/m
Torsion constant (It):
7.065E7mm⁴
Warping constant (Iw):
6.792E13mm⁶

Profile overview for UB 690x360x548

The UB 690x360x548 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 772 mm and a flange width (b) of 372 mm, supported by a 35.1 mm thick web and 63 mm thick flanges. With a cross-sectional area of 69889.96 mm² and a linear mass of 548 kg/m, the UB 690x360x548 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 6729300000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 20380000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 543000000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 690x360x548 provides a y-axis shear area (at strong bending axis) of 46872 mm² for web shear verification and a torsion constant of 70650000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 67920000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.