UC 356x406x421

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

425mm

Width (b):

409mm

Web thickness (t_w):

32.8mm

Flange thickness (t_f):

52.6mm

Radius (r):

20mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

1.599E9

Z-axis:

6.008E8

Elastic section modulus (W_el):mm³

Y-axis:

7.526E6

Z-axis:

2.938E6

Plastic section modulus (W_pl):mm³

Y-axis:

8.903E6

Z-axis:

4.492E6

Radius of gyration (i):mm

Y-axis:

172

Z-axis:

105

Plastic shear area (A_v):mm²

Y-axis:

43030

Z-axis:

14660

Weight per meter:

421kg/m

Area (A):

53710mm²

Surface area per meter:

2.386m²/m

Torsion constant (I_t):

4.416E7mm⁴

Warping constant (I_w):

2.079E13mm⁶

Profile overview for UC 356x406x421

The UC 356x406x421 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 425 mm and a flange width (b) of 409 mm, supported by a 32.8 mm thick web and 52.6 mm thick flanges. With a cross-sectional area of 53710 mm² and a linear mass of 421 kg/m, the UC 356x406x421 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 1599300000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 8903000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 600800000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UC 356x406x421 provides a y-axis shear area (at strong bending axis) of 43026.8 mm² for web shear verification and a torsion constant of 44160000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 20790000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.