HEM 550

Production class: hot rolled (EN 10365)

Section geometry

Height (h):

572mm

Width (b):

306mm

Web thickness (t_w):

21mm

Flange thickness (t_f):

40mm

Radius (r):

27mm

Section properties

Moment of inertia (I):mm⁴

Y-axis:

1.980E9

Z-axis:

1.915E8

Elastic section modulus (W_el):mm³

Y-axis:

6.922E6

Z-axis:

1.252E6

Plastic section modulus (W_pl):mm³

Y-axis:

7.932E6

Z-axis:

1.937E6

Radius of gyration (i):mm

Y-axis:

236

Z-axis:

Plastic shear area (A_v):mm²

Y-axis:

24480

Z-axis:

13950

Weight per meter:

278kg/m

Area (A):

35440mm²

Surface area per meter:

2.28m²/m

Torsion constant (I_t):

1.558E7mm⁴

Warping constant (I_w):

1.351E13mm⁶

Profile overview for HEM 550

The HEM 550 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 572 mm and a flange width (b) of 306 mm, supported by a 21 mm thick web and 40 mm thick flanges. With a cross-sectional area of 35440 mm² and a linear mass of 278 kg/m, the HEM 550 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 1979800000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 7932000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (I_z) provides 191500000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the HEM 550 provides a y-axis shear area (at strong bending axis) of 24480 mm² for web shear verification and a torsion constant of 15580000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 13510000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.