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UBP 203x203x54

Production class: hot rolled (EN 10365)

Section geometry

UBP shape
Height (h):
204mm
Width (b):
207.7mm
Web thickness (tw):
11.3mm
Flange thickness (tf):
11.4mm
Radius (r):
10mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
5.024E7
Z-axis:
1.705E7
Elastic section modulus (Wel):mm³
Y-axis:
4.925E5
Z-axis:
1.641E5
Plastic section modulus (Wpl):mm³
Y-axis:
5.563E5
Z-axis:
2.523E5
Radius of gyration (i):mm
Y-axis:
85
Z-axis:
49
Plastic shear area (Av):mm²
Y-axis:
4736
Z-axis:
2490
Weight per meter:
53.9kg/m
Area (A):
6870mm²
Surface area per meter:
1.199m²/m
Torsion constant (It):
3.256E5mm⁴
Warping constant (Iw):
1.578E11mm⁶

Profile overview for UBP 203x203x54

The UBP 203x203x54 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 204 mm and a flange width (b) of 207.7 mm, supported by a 11.3 mm thick web and 11.4 mm thick flanges. With a cross-sectional area of 6870 mm² and a linear mass of 53.9 kg/m, the UBP 203x203x54 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 50240000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 556300 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 17050000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UBP 203x203x54 provides a y-axis shear area (at strong bending axis) of 4735.56 mm² for web shear verification and a torsion constant of 325600 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 157800000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.