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UB 914x305x381

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
951mm
Width (b):
310mm
Web thickness (tw):
24.4mm
Flange thickness (tf):
43.9mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
6.974E9
Z-axis:
2.191E8
Elastic section modulus (Wel):mm³
Y-axis:
1.466E7
Z-axis:
1.413E6
Plastic section modulus (Wpl):mm³
Y-axis:
1.703E7
Z-axis:
2.243E6
Radius of gyration (i):mm
Y-axis:
378
Z-axis:
67
Plastic shear area (Av):mm²
Y-axis:
27218
Z-axis:
24230
Weight per meter:
381kg/m
Area (A):
48590mm²
Surface area per meter:
3.059m²/m
Torsion constant (It):
2.206E7mm⁴
Warping constant (Iw):
4.483E13mm⁶

Profile overview for UB 914x305x381

The UB 914x305x381 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 951 mm and a flange width (b) of 310 mm, supported by a 24.4 mm thick web and 43.9 mm thick flanges. With a cross-sectional area of 48590 mm² and a linear mass of 381 kg/m, the UB 914x305x381 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 6973700000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 17030000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 219100000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 914x305x381 provides a y-axis shear area (at strong bending axis) of 27218 mm² for web shear verification and a torsion constant of 22060000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 44830000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.