HE 900x391

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

922mm

Width (b):

307mm

Web thickness (t_w):

25mm

Flange thickness (t_f):

46mm

Radius (r):

30mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

6.743E9

Z-axis:

2.232E8

Elastic section modulus (W_el):mm³

Y-axis:

1.462E7

Z-axis:

1.454E6

Plastic section modulus (W_pl):mm³

Y-axis:

1.699E7

Z-axis:

2.312E6

Radius of gyration (i):mm

Y-axis:

368

Z-axis:

Plastic shear area (A_v):mm²

Y-axis:

28244

Z-axis:

25430

Weight per meter:

391kg/m

Area (A):

49770mm²

Surface area per meter:

2.97m²/m

Torsion constant (I_t):

2.596E7mm⁴

Warping constant (I_w):

4.255E13mm⁶

Profile overview for HE 900x391

The HE 900x391 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 922 mm and a flange width (b) of 307 mm, supported by a 25 mm thick web and 46 mm thick flanges. With a cross-sectional area of 49770 mm² and a linear mass of 391 kg/m, the HE 900x391 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 6743400000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 16990000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 223200000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the HE 900x391 provides a y-axis shear area (at strong bending axis) of 28244 mm² for web shear verification and a torsion constant of 25960000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 42550000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.