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UB 533x312x409

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
613mm
Width (b):
327mm
Web thickness (tw):
31mm
Flange thickness (tf):
55.6mm
Radius (r):
25mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
3.192E9
Z-axis:
3.255E8
Elastic section modulus (Wel):mm³
Y-axis:
1.041E7
Z-axis:
1.990E6
Plastic section modulus (Wpl):mm³
Y-axis:
1.221E7
Z-axis:
3.104E6
Radius of gyration (i):mm
Y-axis:
246
Z-axis:
78
Plastic shear area (Av):mm²
Y-axis:
36360
Z-axis:
20590
Weight per meter:
409kg/m
Area (A):
52450mm²
Surface area per meter:
2.429m²/m
Torsion constant (It):
4.343E7mm⁴
Warping constant (Iw):
2.516E13mm⁶

Profile overview for UB 533x312x409

The UB 533x312x409 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 613 mm and a flange width (b) of 327 mm, supported by a 31 mm thick web and 55.6 mm thick flanges. With a cross-sectional area of 52454.7 mm² and a linear mass of 409 kg/m, the UB 533x312x409 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 3192400000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 12210000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 325500000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 533x312x409 provides a y-axis shear area (at strong bending axis) of 36362.4 mm² for web shear verification and a torsion constant of 43430000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 25160000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.