Back to All Sections

RHS 350x250/16

Production class: hot finished (EN 10210-2)

Section geometry

RHS shape
Height (h):
350mm
Width (b):
250mm
Wall thickness (t):
16mm
Outer rounding (router):
24mm
Inner rounding (rinner):
16mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
3.001E8
Z-axis:
1.765E8
Elastic section modulus (Wel):mm³
Y-axis:
1.715E6
Z-axis:
1.412E6
Plastic section modulus (Wpl):mm³
Y-axis:
2.095E6
Z-axis:
1.655E6
Radius of gyration (i):mm
Y-axis:
129.5
Z-axis:
99.3
Plastic shear area (Av):mm²
Y-axis:
7459
Z-axis:
10440
Weight per meter:
140.5kg/m
Area (A):
17900mm²
Surface area per meter:
1.159m²/m
Torsion constant (It):
3.533E8mm⁴

Profile overview for RHS 350x250/16

The RHS 350x250/16 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 350 mm, a width of 250 mm, and a uniform wall thickness of 16 mm. With a cross-sectional area of 17901.30965 mm² and a linear mass of 140.5252807 kg/m, the RHS 350x250/16 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 300100000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 2095000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 176500000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the RHS 350x250/16 provides a y-axis shear area (at strong bending axis) of 7458.87902 mm² for web shear verification and a torsion constant of 353300000 mm⁴ for calculating rotational twist under eccentric loading.