IPN 320

The IPN 320 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 320 mm and a flange width (b) of 131 mm, supported by a 11.5 mm thick web and 17.3 mm thick flanges. With a cross-sectional area of 7770 mm² and a linear mass of 61 kg/m, the IPN 320 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 125100000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 914000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 5550000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the IPN 320 provides a y-axis shear area (at strong bending axis) of 4532.6 mm² for web shear verification and a torsion constant of 725000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 129000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.