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RHS 140x80/4

Production class: hot finished (EN 10210-2)

Section geometry

RHS shape
Height (h):
140mm
Width (b):
80mm
Wall thickness (t):
4mm
Outer rounding (router):
6mm
Inner rounding (rinner):
4mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
4.406E6
Z-axis:
1.838E6
Elastic section modulus (Wel):mm³
Y-axis:
62940
Z-axis:
45960
Plastic section modulus (Wpl):mm³
Y-axis:
77140
Z-axis:
52220
Radius of gyration (i):mm
Y-axis:
51.23
Z-axis:
33.09
Plastic shear area (Av):mm²
Y-axis:
610.5
Z-axis:
1068
Weight per meter:
13.18kg/m
Area (A):
1679mm²
Surface area per meter:
0.4297m²/m
Torsion constant (It):
4.107E6mm⁴

Profile overview for RHS 140x80/4

The RHS 140x80/4 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 4 mm. With a cross-sectional area of 1678.831853 mm² and a linear mass of 13.17883005 kg/m, the RHS 140x80/4 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 4406000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 77140 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 1838000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the RHS 140x80/4 provides a y-axis shear area (at strong bending axis) of 610.4843102 mm² for web shear verification and a torsion constant of 4107000 mm⁴ for calculating rotational twist under eccentric loading.