UBP 203x203x45

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

200.2mm

Width (b):

205.9mm

Web thickness (t_w):

9.5mm

Flange thickness (t_f):

9.5mm

Radius (r):

10mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

4.097E7

Z-axis:

1.383E7

Elastic section modulus (W_el):mm³

Y-axis:

4.093E5

Z-axis:

1.344E5

Plastic section modulus (W_pl):mm³

Y-axis:

4.585E5

Z-axis:

2.060E5

Radius of gyration (i):mm

Y-axis:

Z-axis:

Plastic shear area (A_v):mm²

Y-axis:

3912

Z-axis:

2087

Weight per meter:

44.9kg/m

Area (A):

5720mm²

Surface area per meter:

1.188m²/m

Torsion constant (I_t):

1.915E5mm⁴

Warping constant (I_w):

1.256E11mm⁶

Profile overview for UBP 203x203x45

The UBP 203x203x45 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 200.2 mm and a flange width (b) of 205.9 mm, supported by a 9.5 mm thick web and 9.5 mm thick flanges. With a cross-sectional area of 5720 mm² and a linear mass of 44.9 kg/m, the UBP 203x203x45 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 (I_y) of 40970000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 458500 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 13830000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UBP 203x203x45 provides a y-axis shear area (at strong bending axis) of 3912.1 mm² for web shear verification and a torsion constant of 191500 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 125600000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.