HE 650x343

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

680mm

Width (b):

309mm

Web thickness (t_w):

25mm

Flange thickness (t_f):

46mm

Radius (r):

27mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

3.337E9

Z-axis:

2.271E8

Elastic section modulus (W_el):mm³

Y-axis:

9.815E6

Z-axis:

1.470E6

Plastic section modulus (W_pl):mm³

Y-axis:

1.135E7

Z-axis:

2.299E6

Radius of gyration (i):mm

Y-axis:

276

Z-axis:

Plastic shear area (A_v):mm²

Y-axis:

28428

Z-axis:

18950

Weight per meter:

343kg/m

Area (A):

43750mm²

Surface area per meter:

2.5m²/m

Torsion constant (I_t):

2.435E7mm⁴

Warping constant (I_w):

2.273E13mm⁶

Profile overview for HE 650x343

The HE 650x343 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 680 mm and a flange width (b) of 309 mm, supported by a 25 mm thick web and 46 mm thick flanges. With a cross-sectional area of 43750 mm² and a linear mass of 343 kg/m, the HE 650x343 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 3337100000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 11350000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 227100000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the HE 650x343 provides a y-axis shear area (at strong bending axis) of 28428 mm² for web shear verification and a torsion constant of 24350000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 22730000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.