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W 840x400x527

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

Section geometry

W shape
Height (h):
903mm
Width (b):
409mm
Web thickness (tw):
29.5mm
Flange thickness (tf):
53.1mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
9.151E9
Z-axis:
6.073E8
Elastic section modulus (Wel):mm³
Y-axis:
2.026E7
Z-axis:
2.969E6
Plastic section modulus (Wpl):mm³
Y-axis:
2.327E7
Z-axis:
4.621E6
Radius of gyration (i):mm
Y-axis:
368
Z-axis:
95
Plastic shear area (Av):mm²
Y-axis:
43440
Z-axis:
27530
Weight per meter:
527kg/m
Area (A):
67200mm²
Surface area per meter:
3.349m²/m
Torsion constant (It):
4.777E7mm⁴
Warping constant (Iw):
1.093E14mm⁶

Profile overview for W 840x400x527

The W 840x400x527 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 903 mm and a flange width (b) of 409 mm, supported by a 29.5 mm thick web and 53.1 mm thick flanges. With a cross-sectional area of 67200 mm² and a linear mass of 527 kg/m, the W 840x400x527 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 9150800000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 23270000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 607300000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the W 840x400x527 provides a y-axis shear area (at strong bending axis) of 43435.8 mm² for web shear verification and a torsion constant of 47770000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 109340000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.