W 250x250x80

Production class: hot rolled (ASTM A 6/A 6M)

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:

80kg/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 W 250x250x80

The W 250x250x80 is a structural steel cross-section utilized in commercial construction, industrial framing, and mechanical engineering. Manufactured as a hot rolled section, it complies with ASTM A 6/A 6M 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 80 kg/m, the W 250x250x80 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 W 250x250x80 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.