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W 840x400x473

Production class: hot rolled (ASTM A 6/A 6M)

Section geometry

W shape
Height (h):
893mm
Width (b):
406mm
Web thickness (tw):
26.4mm
Flange thickness (tf):
48mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
8.132E9
Z-axis:
5.367E8
Elastic section modulus (Wel):mm³
Y-axis:
1.821E7
Z-axis:
2.643E6
Plastic section modulus (Wpl):mm³
Y-axis:
2.079E7
Z-axis:
4.100E6
Radius of gyration (i):mm
Y-axis:
367
Z-axis:
94
Plastic shear area (Av):mm²
Y-axis:
38976
Z-axis:
24570
Weight per meter:
473kg/m
Area (A):
60300mm²
Surface area per meter:
3.323m²/m
Torsion constant (It):
3.511E7mm⁴
Warping constant (Iw):
9.556E13mm⁶

Profile overview for W 840x400x473

The W 840x400x473 is a structural steel cross-section utilized in commercial construction, industrial framing, and mechanical engineering. Manufactured as a hot rolled section, it complies with ASTM A 6/A 6M 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 open profile features a total depth (h) of 893 mm and a flange width (b) of 406 mm, supported by a 26.4 mm thick web and 48 mm thick flanges. With a cross-sectional area of 60300 mm² and a linear mass of 473 kg/m, the W 840x400x473 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 8132000000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 20790000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 536700000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the W 840x400x473 provides a y-axis shear area (at strong bending axis) of 38976 mm² for web shear verification and a torsion constant of 35110000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 95560000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.