HD 400x677

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

483mm

Width (b):

428mm

Web thickness (t_w):

51.2mm

Flange thickness (t_f):

81.5mm

Radius (r):

20mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

2.998E9

Z-axis:

1.069E9

Elastic section modulus (W_el):mm³

Y-axis:

1.241E7

Z-axis:

4.994E6

Plastic section modulus (W_pl):mm³

Y-axis:

1.536E7

Z-axis:

7.684E6

Radius of gyration (i):mm

Y-axis:

186

Z-axis:

111

Plastic shear area (A_v):mm²

Y-axis:

69764

Z-axis:

24160

Weight per meter:

677kg/m

Area (A):

86340mm²

Surface area per meter:

2.541m²/m

Torsion constant (I_t):

1.668E8mm⁴

Warping constant (I_w):

4.291E13mm⁶

Profile overview for HD 400x677

The HD 400x677 is a structural steel cross-section utilized in commercial construction, industrial framing, and mechanical engineering. Manufactured as a hot rolled section, it complies with EN 10365 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 483 mm and a flange width (b) of 428 mm, supported by a 51.2 mm thick web and 81.5 mm thick flanges. With a cross-sectional area of 86340 mm² and a linear mass of 677 kg/m, the HD 400x677 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 2998200000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 15360000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 1068800000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the HD 400x677 provides a y-axis shear area (at strong bending axis) of 69764 mm² for web shear verification and a torsion constant of 166800000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 42910000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.