CHS 273/20

Production class: hot finished (EN 10210-2)

Section geometry

Diameter (D):

273mm

Wall thickness (t):

20mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

1.280E8

Z-axis:

1.280E8

Elastic section modulus (W_el):mm³

Y-axis:

9.376E5

Z-axis:

9.376E5

Plastic section modulus (W_pl):mm³

Y-axis:

1.283E6

Z-axis:

1.283E6

Radius of gyration (i):mm

Y-axis:

89.73

Z-axis:

89.73

Plastic shear area (A_v):mm²

Y-axis:

10120

Z-axis:

10120

Weight per meter:

124.8kg/m

Area (A):

15900mm²

Surface area per meter:

0.8577m²/m

Torsion constant (I_t):

2.560E8mm⁴

Profile overview for CHS 273/20

The CHS 273/20 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 circular hollow section features a nominal outer diameter of 273 mm and a uniform wall thickness of 20 mm. With a cross-sectional area of 15896.45883 mm² and a linear mass of 124.7872018 kg/m, the CHS 273/20 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 (I_y) of 127984377.1 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 1282846.667 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 127984377.1 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the CHS 273/20 provides a y-axis shear area (at strong bending axis) of 10120 mm² for web shear verification and a torsion constant of 255968754.1 mm⁴ for calculating rotational twist under eccentric loading.