Back to All Sections

RHS 140x80/5

Production class: hot finished (EN 10210-2)

Section geometry

RHS shape
Height (h):
140mm
Width (b):
80mm
Wall thickness (t):
5mm
Outer rounding (router):
7.5mm
Inner rounding (rinner):
5mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
5.340E6
Z-axis:
2.211E6
Elastic section modulus (Wel):mm³
Y-axis:
76280
Z-axis:
55280
Plastic section modulus (Wpl):mm³
Y-axis:
94320
Z-axis:
63630
Radius of gyration (i):mm
Y-axis:
50.75
Z-axis:
32.66
Plastic shear area (Av):mm²
Y-axis:
753.9
Z-axis:
1319
Weight per meter:
16.27kg/m
Area (A):
2073mm²
Surface area per meter:
0.4271m²/m
Torsion constant (It):
4.994E6mm⁴

Profile overview for RHS 140x80/5

The RHS 140x80/5 is a structural steel cross-section utilized in commercial construction, industrial framing, and mechanical engineering. Manufactured as a hot finished section, it complies with EN 10210-2 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 rectangular/square hollow section is defined by a depth of 140 mm, a width of 80 mm, and a uniform wall thickness of 5 mm. With a cross-sectional area of 2073.17477 mm² and a linear mass of 16.27442195 kg/m, the RHS 140x80/5 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 (Iy) of 5340000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 94320 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 2211000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the RHS 140x80/5 provides a y-axis shear area (at strong bending axis) of 753.8817347 mm² for web shear verification and a torsion constant of 4994000 mm⁴ for calculating rotational twist under eccentric loading.