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UB 920x420x491

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
957mm
Width (b):
422mm
Web thickness (tw):
25.9mm
Flange thickness (tf):
47mm
Radius (r):
25mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
9.704E9
Z-axis:
5.901E8
Elastic section modulus (Wel):mm³
Y-axis:
2.028E7
Z-axis:
2.796E6
Plastic section modulus (Wpl):mm³
Y-axis:
2.309E7
Z-axis:
4.339E6
Radius of gyration (i):mm
Y-axis:
393
Z-axis:
97
Plastic shear area (Av):mm²
Y-axis:
39668
Z-axis:
26450
Weight per meter:
491kg/m
Area (A):
62330mm²
Surface area per meter:
3.507m²/m
Torsion constant (It):
3.520E7mm⁴
Warping constant (Iw):
1.219E14mm⁶

Profile overview for UB 920x420x491

The UB 920x420x491 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 957 mm and a flange width (b) of 422 mm, supported by a 25.9 mm thick web and 47 mm thick flanges. With a cross-sectional area of 62330 mm² and a linear mass of 491 kg/m, the UB 920x420x491 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 9704100000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 23090000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 590100000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 920x420x491 provides a y-axis shear area (at strong bending axis) of 39668 mm² for web shear verification and a torsion constant of 35200000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 121870000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.