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W 310x200x74

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

Section geometry

W shape
Height (h):
310mm
Width (b):
205mm
Web thickness (tw):
9.4mm
Flange thickness (tf):
16.3mm
Radius (r):
15mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
1.645E8
Z-axis:
2.343E7
Elastic section modulus (Wel):mm³
Y-axis:
1.061E6
Z-axis:
2.286E5
Plastic section modulus (Wpl):mm³
Y-axis:
1.188E6
Z-axis:
3.501E5
Radius of gyration (i):mm
Y-axis:
131
Z-axis:
49
Plastic shear area (Av):mm²
Y-axis:
6683
Z-axis:
3442
Weight per meter:
74kg/m
Area (A):
9480mm²
Surface area per meter:
1.395m²/m
Torsion constant (It):
7.427E5mm⁴
Warping constant (Iw):
5.047E11mm⁶

Profile overview for W 310x200x74

The W 310x200x74 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 310 mm and a flange width (b) of 205 mm, supported by a 9.4 mm thick web and 16.3 mm thick flanges. With a cross-sectional area of 9480 mm² and a linear mass of 74 kg/m, the W 310x200x74 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 164500000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 1188000 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 23430000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the W 310x200x74 provides a y-axis shear area (at strong bending axis) of 6683 mm² for web shear verification and a torsion constant of 742700 mm⁴ for calculating rotational twist under eccentric loading. Additionally, a warping constant of 504700000000 mm⁶ is available for rigorous lateral-torsional buckling (LTB) checks.