UPN 50

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

50mm

Width (b):

38mm

Web thickness (t_w):

5mm

Flange thickness (t_f):

7mm

Radius (r):

7mm

Radius 2 (r₂):

3.5mm

Distance edge to centroid (y_s):

13.7mm

Distance shear center to centroid (y_m):

24.7mm

Distance end to measure point (u):

19mm

Flange slope:

Section properties

Moment of inertia (I):mm⁴

Y-axis:

2.640E5

Z-axis:

91200

Elastic section modulus (W_el):mm³

Y-axis:

10600

Z-axis:

3750

Plastic section modulus (W_pl):mm³

Y-axis:

13100

Z-axis:

6780

Radius of gyration (i):mm

Y-axis:

19.2

Z-axis:

11.3

Plastic shear area (A_v):mm²

Y-axis:

532

Z-axis:

277

Weight per meter:

5.6kg/m

Area (A):

710mm²

Surface area per meter:

0.232m²/m

Torsion constant (I_t):

11200mm⁴

Warping constant (I_w):

3.000E7mm⁶

Profile overview for UPN 50

The UPN 50 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 50 mm and a flange width (b) of 38 mm, supported by a 5 mm thick web and 7 mm thick flanges. With a cross-sectional area of 710 mm² and a linear mass of 5.6 kg/m, the UPN 50 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 264000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 13100 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 91200 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UPN 50 provides a y-axis shear area (at strong bending axis) of 532 mm² for web shear verification and a torsion constant of 11200 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 30000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.