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UB 356x127x39

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
353.4mm
Width (b):
126mm
Web thickness (tw):
6.6mm
Flange thickness (tf):
10.7mm
Radius (r):
10mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
1.016E8
Z-axis:
3.578E6
Elastic section modulus (Wel):mm³
Y-axis:
5.751E5
Z-axis:
56790
Plastic section modulus (Wpl):mm³
Y-axis:
6.579E5
Z-axis:
89020
Radius of gyration (i):mm
Y-axis:
142
Z-axis:
26
Plastic shear area (Av):mm²
Y-axis:
2696
Z-axis:
2561
Weight per meter:
39.1kg/m
Area (A):
4980mm²
Surface area per meter:
1.18m²/m
Torsion constant (It):
1.502E5mm⁴
Warping constant (Iw):
1.047E11mm⁶

Profile overview for UB 356x127x39

The UB 356x127x39 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 353.4 mm and a flange width (b) of 126 mm, supported by a 6.6 mm thick web and 10.7 mm thick flanges. With a cross-sectional area of 4980 mm² and a linear mass of 39.1 kg/m, the UB 356x127x39 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 101600000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 657900 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 3578000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 356x127x39 provides a y-axis shear area (at strong bending axis) of 2696.4 mm² for web shear verification and a torsion constant of 150200 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 104700000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.