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UB 690x360x802

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
826mm
Width (b):
387mm
Web thickness (tw):
50mm
Flange thickness (tf):
89.9mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
1.063E10
Z-axis:
8.754E8
Elastic section modulus (Wel):mm³
Y-axis:
2.574E7
Z-axis:
4.524E6
Plastic section modulus (Wpl):mm³
Y-axis:
3.093E7
Z-axis:
7.146E6
Radius of gyration (i):mm
Y-axis:
322
Z-axis:
92
Plastic shear area (Av):mm²
Y-axis:
69580
Z-axis:
40740
Weight per meter:
802kg/m
Area (A):
1.022E5mm²
Surface area per meter:
3.066m²/m
Torsion constant (It):
2.061E8mm⁴
Warping constant (Iw):
1.176E14mm⁶

Profile overview for UB 690x360x802

The UB 690x360x802 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 826 mm and a flange width (b) of 387 mm, supported by a 50 mm thick web and 89.9 mm thick flanges. With a cross-sectional area of 102235.96 mm² and a linear mass of 802 kg/m, the UB 690x360x802 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 10631700000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 30930000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 875400000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 690x360x802 provides a y-axis shear area (at strong bending axis) of 69582.6 mm² for web shear verification and a torsion constant of 206100000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 117630000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.