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HD 320x198

Production class: hot rolled (EN 10365)

Section geometry

HD shape
Height (h):
343mm
Width (b):
306mm
Web thickness (tw):
18mm
Flange thickness (tf):
32mm
Radius (r):
27mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
5.189E8
Z-axis:
1.531E8
Elastic section modulus (Wel):mm³
Y-axis:
3.025E6
Z-axis:
1.000E6
Plastic section modulus (Wpl):mm³
Y-axis:
3.479E6
Z-axis:
1.530E6
Radius of gyration (i):mm
Y-axis:
143
Z-axis:
77
Plastic shear area (Av):mm²
Y-axis:
19584
Z-axis:
7951
Weight per meter:
198kg/m
Area (A):
25230mm²
Surface area per meter:
1.828m²/m
Torsion constant (It):
8.085E6mm⁴
Warping constant (Iw):
3.695E12mm⁶

Profile overview for HD 320x198

The HD 320x198 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 343 mm and a flange width (b) of 306 mm, supported by a 18 mm thick web and 32 mm thick flanges. With a cross-sectional area of 25230 mm² and a linear mass of 198 kg/m, the HD 320x198 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 518900000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 3479000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 153100000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the HD 320x198 provides a y-axis shear area (at strong bending axis) of 19584 mm² for web shear verification and a torsion constant of 8085000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 3695000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.