Back to All Sections

IPN 280

Production class: hot rolled (EN 10365)

Section geometry

IPN shape
Height (h):
280mm
Width (b):
119mm
Web thickness (tw):
10.1mm
Flange thickness (tf):
15.2mm
Radius (r):
10.1mm
Radius 2 (r2):
6.1mm
Flange slope:
14%

Section properties

Moment of inertia (I):mm⁴
Y-axis:
7.590E7
Z-axis:
3.640E6
Elastic section modulus (Wel):mm³
Y-axis:
5.420E5
Z-axis:
61200
Plastic section modulus (Wpl):mm³
Y-axis:
6.320E5
Z-axis:
1.030E5
Radius of gyration (i):mm
Y-axis:
111
Z-axis:
24.5
Plastic shear area (Av):mm²
Y-axis:
3618
Z-axis:
3018
Weight per meter:
47.9kg/m
Area (A):
6100mm²
Surface area per meter:
0.966m²/m
Torsion constant (It):
4.420E5mm⁴
Warping constant (Iw):
6.460E10mm⁶

Profile overview for IPN 280

The IPN 280 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 280 mm and a flange width (b) of 119 mm, supported by a 10.1 mm thick web and 15.2 mm thick flanges. With a cross-sectional area of 6100 mm² and a linear mass of 47.9 kg/m, the IPN 280 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 75900000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 632000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 3640000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the IPN 280 provides a y-axis shear area (at strong bending axis) of 3617.6 mm² for web shear verification and a torsion constant of 442000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 64600000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.