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HD 320x158

Production class: hot rolled (EN 10365)

Section geometry

HD shape
Height (h):
330mm
Width (b):
303mm
Web thickness (tw):
14.5mm
Flange thickness (tf):
25.5mm
Radius (r):
27mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
3.964E8
Z-axis:
1.184E8
Elastic section modulus (Wel):mm³
Y-axis:
2.402E6
Z-axis:
7.816E5
Plastic section modulus (Wpl):mm³
Y-axis:
2.718E6
Z-axis:
1.193E6
Radius of gyration (i):mm
Y-axis:
140
Z-axis:
76
Plastic shear area (Av):mm²
Y-axis:
15453
Z-axis:
6418
Weight per meter:
158kg/m
Area (A):
20120mm²
Surface area per meter:
1.797m²/m
Torsion constant (It):
4.249E6mm⁴
Warping constant (Iw):
2.740E12mm⁶

Profile overview for HD 320x158

The HD 320x158 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 330 mm and a flange width (b) of 303 mm, supported by a 14.5 mm thick web and 25.5 mm thick flanges. With a cross-sectional area of 20120 mm² and a linear mass of 158 kg/m, the HD 320x158 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 396400000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 2718000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 118400000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the HD 320x158 provides a y-axis shear area (at strong bending axis) of 15453 mm² for web shear verification and a torsion constant of 4249000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 2740000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.