UPN 180

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

180mm

Width (b):

70mm

Web thickness (t_w):

8mm

Flange thickness (t_f):

11mm

Radius (r):

11mm

Radius 2 (r₂):

5.5mm

Distance edge to centroid (y_s):

19.2mm

Distance shear center to centroid (y_m):

37.5mm

Distance end to measure point (u):

35mm

Flange slope:

Section properties

Moment of inertia (I):mm⁴

Y-axis:

1.350E7

Z-axis:

1.140E6

Elastic section modulus (W_el):mm³

Y-axis:

1.500E5

Z-axis:

22400

Plastic section modulus (W_pl):mm³

Y-axis:

1.790E5

Z-axis:

42900

Radius of gyration (i):mm

Y-axis:

69.5

Z-axis:

20.2

Plastic shear area (A_v):mm²

Y-axis:

1540

Z-axis:

1510

Weight per meter:

22kg/m

Area (A):

2800mm²

Surface area per meter:

0.611m²/m

Torsion constant (I_t):

95500mm⁴

Warping constant (I_w):

5.570E9mm⁶

Profile overview for UPN 180

The UPN 180 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 180 mm and a flange width (b) of 70 mm, supported by a 8 mm thick web and 11 mm thick flanges. With a cross-sectional area of 2800 mm² and a linear mass of 22 kg/m, the UPN 180 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 13500000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 179000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 1140000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UPN 180 provides a y-axis shear area (at strong bending axis) of 1540 mm² for web shear verification and a torsion constant of 95500 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 5570000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.