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RHS 200x120/4

Production class: cold formed (EN 10219-2)

Section geometry

RHS shape
Height (h):
200mm
Width (b):
120mm
Wall thickness (t):
4mm
Outer rounding (router):
8mm
Inner rounding (rinner):
4mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
1.353E7
Z-axis:
6.177E6
Elastic section modulus (Wel):mm³
Y-axis:
1.353E5
Z-axis:
1.029E5
Plastic section modulus (Wpl):mm³
Y-axis:
1.637E5
Z-axis:
1.154E5
Radius of gyration (i):mm
Y-axis:
74.24
Z-axis:
50.16
Plastic shear area (Av):mm²
Y-axis:
920.5
Z-axis:
1534
Weight per meter:
19.27kg/m
Area (A):
2455mm²
Surface area per meter:
0.6263m²/m
Torsion constant (It):
1.345E7mm⁴

Profile overview for RHS 200x120/4

The RHS 200x120/4 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 200 mm, a width of 120 mm, and a uniform wall thickness of 4 mm. With a cross-sectional area of 2454.796447 mm² and a linear mass of 19.27015211 kg/m, the RHS 200x120/4 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 13530000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 163700 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 6177000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the RHS 200x120/4 provides a y-axis shear area (at strong bending axis) of 920.5486678 mm² for web shear verification and a torsion constant of 13450000 mm⁴ for calculating rotational twist under eccentric loading.