UC 254x254x81

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

256mm

Width (b):

255mm

Web thickness (t_w):

9.4mm

Flange thickness (t_f):

15.6mm

Radius (r):

13mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

1.257E8

Z-axis:

4.313E7

Elastic section modulus (W_el):mm³

Y-axis:

9.824E5

Z-axis:

3.383E5

Plastic section modulus (W_pl):mm³

Y-axis:

1.090E6

Z-axis:

5.132E5

Radius of gyration (i):mm

Y-axis:

110

Z-axis:

Plastic shear area (A_v):mm²

Y-axis:

7956

Z-axis:

2810

Weight per meter:

81kg/m

Area (A):

10200mm²

Surface area per meter:

1.491m²/m

Torsion constant (I_t):

7.594E5mm⁴

Warping constant (I_w):

6.228E11mm⁶

Profile overview for UC 254x254x81

The UC 254x254x81 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 256 mm and a flange width (b) of 255 mm, supported by a 9.4 mm thick web and 15.6 mm thick flanges. With a cross-sectional area of 10200 mm² and a linear mass of 81 kg/m, the UC 254x254x81 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 125700000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 1090000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 43130000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UC 254x254x81 provides a y-axis shear area (at strong bending axis) of 7956 mm² for web shear verification and a torsion constant of 759400 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 622800000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.