UC 356x406x340

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

406.4mm

Width (b):

403mm

Web thickness (t_w):

26.6mm

Flange thickness (t_f):

42.9mm

Radius (r):

20mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

1.229E9

Z-axis:

4.685E8

Elastic section modulus (W_el):mm³

Y-axis:

6.047E6

Z-axis:

2.325E6

Plastic section modulus (W_pl):mm³

Y-axis:

7.021E6

Z-axis:

3.546E6

Radius of gyration (i):mm

Y-axis:

168

Z-axis:

103

Plastic shear area (A_v):mm²

Y-axis:

34580

Z-axis:

11720

Weight per meter:

340kg/m

Area (A):

43300mm²

Surface area per meter:

2.337m²/m

Torsion constant (I_t):

2.390E7mm⁴

Warping constant (I_w):

1.545E13mm⁶

Profile overview for UC 356x406x340

The UC 356x406x340 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 406.4 mm and a flange width (b) of 403 mm, supported by a 26.6 mm thick web and 42.9 mm thick flanges. With a cross-sectional area of 43300 mm² and a linear mass of 340 kg/m, the UC 356x406x340 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 1228800000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 7021000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 468500000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UC 356x406x340 provides a y-axis shear area (at strong bending axis) of 34577.4 mm² for web shear verification and a torsion constant of 23900000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 15450000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.