Back to All Sections

W 310x310x179

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

Section geometry

W shape
Height (h):
333mm
Width (b):
313mm
Web thickness (tw):
18mm
Flange thickness (tf):
28.1mm
Radius (r):
20mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
4.479E8
Z-axis:
1.438E8
Elastic section modulus (Wel):mm³
Y-axis:
2.690E6
Z-axis:
9.189E5
Plastic section modulus (Wpl):mm³
Y-axis:
3.072E6
Z-axis:
1.403E6
Radius of gyration (i):mm
Y-axis:
139
Z-axis:
79
Plastic shear area (Av):mm²
Y-axis:
17590
Z-axis:
6955
Weight per meter:
179kg/m
Area (A):
22800mm²
Surface area per meter:
1.848m²/m
Torsion constant (It):
5.583E6mm⁴
Warping constant (Iw):
3.337E12mm⁶

Profile overview for W 310x310x179

The W 310x310x179 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 333 mm and a flange width (b) of 313 mm, supported by a 18 mm thick web and 28.1 mm thick flanges. With a cross-sectional area of 22800 mm² and a linear mass of 179 kg/m, the W 310x310x179 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 447900000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 3072000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 143800000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the W 310x310x179 provides a y-axis shear area (at strong bending axis) of 17590.6 mm² for web shear verification and a torsion constant of 5583000 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 3337000000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.