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UC 203x203x71

Production class: hot rolled (EN 10365)

Section geometry

UC shape
Height (h):
215.8mm
Width (b):
206.4mm
Web thickness (tw):
10mm
Flange thickness (tf):
17.3mm
Radius (r):
10mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
7.615E7
Z-axis:
2.537E7
Elastic section modulus (Wel):mm³
Y-axis:
7.057E5
Z-axis:
2.458E5
Plastic section modulus (Wpl):mm³
Y-axis:
7.984E5
Z-axis:
3.736E5
Radius of gyration (i):mm
Y-axis:
91
Z-axis:
52
Plastic shear area (Av):mm²
Y-axis:
7141
Z-axis:
2416
Weight per meter:
71kg/m
Area (A):
9040mm²
Surface area per meter:
1.22m²/m
Torsion constant (It):
8.007E5mm⁴
Warping constant (Iw):
2.497E11mm⁶

Profile overview for UC 203x203x71

The UC 203x203x71 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 215.8 mm and a flange width (b) of 206.4 mm, supported by a 10 mm thick web and 17.3 mm thick flanges. With a cross-sectional area of 9040 mm² and a linear mass of 71 kg/m, the UC 203x203x71 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 76150000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 798400 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 25370000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UC 203x203x71 provides a y-axis shear area (at strong bending axis) of 7141.44 mm² for web shear verification and a torsion constant of 800700 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 249700000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.