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UB 1000x400x748

Production class: hot rolled (EN 10365)

Section geometry

UB shape
Height (h):
1068mm
Width (b):
417mm
Web thickness (tw):
39mm
Flange thickness (tf):
70mm
Radius (r):
30mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
1.732E10
Z-axis:
8.511E8
Elastic section modulus (Wel):mm³
Y-axis:
3.243E7
Z-axis:
4.082E6
Plastic section modulus (Wpl):mm³
Y-axis:
3.788E7
Z-axis:
6.459E6
Radius of gyration (i):mm
Y-axis:
426
Z-axis:
94
Plastic shear area (Av):mm²
Y-axis:
58380
Z-axis:
43890
Weight per meter:
748kg/m
Area (A):
95340mm²
Surface area per meter:
3.674m²/m
Torsion constant (It):
1.155E8mm⁴
Warping constant (Iw):
2.106E14mm⁶

Profile overview for UB 1000x400x748

The UB 1000x400x748 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 1068 mm and a flange width (b) of 417 mm, supported by a 39 mm thick web and 70 mm thick flanges. With a cross-sectional area of 95340 mm² and a linear mass of 748 kg/m, the UB 1000x400x748 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 17319400000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 37880000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 851100000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the UB 1000x400x748 provides a y-axis shear area (at strong bending axis) of 58380 mm² for web shear verification and a torsion constant of 115500000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 210640000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.