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RHS 140x80/4

Production class: cold formed (EN 10219-2)

Section geometry

RHS shape
Height (h):
140mm
Width (b):
80mm
Wall thickness (t):
4mm
Outer rounding (router):
8mm
Inner rounding (rinner):
4mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
4.296E6
Z-axis:
1.804E6
Elastic section modulus (Wel):mm³
Y-axis:
61370
Z-axis:
45100
Plastic section modulus (Wpl):mm³
Y-axis:
75510
Z-axis:
51310
Radius of gyration (i):mm
Y-axis:
50.95
Z-axis:
33.02
Plastic shear area (Av):mm²
Y-axis:
601.7
Z-axis:
1053
Weight per meter:
12.99kg/m
Area (A):
1655mm²
Surface area per meter:
0.4263m²/m
Torsion constant (It):
4.116E6mm⁴

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 cold formed section, it complies with EN 10219-2 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 1654.796447 mm² and a linear mass of 12.99015211 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 4296000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 75510 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 1804000 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 601.7441627 mm² for web shear verification and a torsion constant of 4116000 mm⁴ for calculating rotational twist under eccentric loading.