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RHS 180x100/5

Production class: cold formed (EN 10219-2)

Section geometry

RHS shape
Height (h):
180mm
Width (b):
100mm
Wall thickness (t):
5mm
Outer rounding (router):
10mm
Inner rounding (rinner):
5mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
1.124E7
Z-axis:
4.518E6
Elastic section modulus (Wel):mm³
Y-axis:
1.249E5
Z-axis:
90350
Plastic section modulus (Wpl):mm³
Y-axis:
1.540E5
Z-axis:
1.026E5
Radius of gyration (i):mm
Y-axis:
65.3
Z-axis:
41.4
Plastic shear area (Av):mm²
Y-axis:
941.3
Z-axis:
1694
Weight per meter:
20.69kg/m
Area (A):
2636mm²
Surface area per meter:
0.5428m²/m
Torsion constant (It):
1.045E7mm⁴

Profile overview for RHS 180x100/5

The RHS 180x100/5 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 180 mm, a width of 100 mm, and a uniform wall thickness of 5 mm. With a cross-sectional area of 2635.619449 mm² and a linear mass of 20.68961267 kg/m, the RHS 180x100/5 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 11240000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 154000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 4518000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the RHS 180x100/5 provides a y-axis shear area (at strong bending axis) of 941.2926604 mm² for web shear verification and a torsion constant of 10450000 mm⁴ for calculating rotational twist under eccentric loading.