W310x39 G40.21 350W — Canadian W-Shape Section Properties

Approximate equivalent of W12X26 per AISC A6. Approx. equivalent of W12X26. Verify against CISC Handbook.

Dimensions (Metric)

Property Value Unit
Depth (d) 309.9 mm
Flange Width (bf) 164.8 mm
Flange Thickness (tf) 9.7 mm
Web Thickness (tw) 5.8 mm
Cross-Sectional Area (A) 49.4 cm²
Mass 38.7 kg/m

Elastic Section Properties (Metric)

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 8,491 720 cm⁴
Elastic Section Modulus (S) 547 88 cm³
Plastic Section Modulus (Z) 610 134 cm³
Radius of Gyration (r) 13.13 3.84 cm

Torsional Properties

Property Value Unit
Torsional Constant (J) 12 cm⁴
Warping Constant (Cw) 162,980 cm⁶
Distance Between Flange Centroids (ho) 29.97 cm
Effective Radius (rts) 4.45 cm

Imperial Reference

Property Value Unit
Depth (d) 12.20 in
Flange Width (bf) 6.49 in
Area (A) 7.65 in²
Weight 26 lb/ft

Design Resources

Frequently Asked Questions

What is the W310x39 equivalent to in US units? It approximates a W12X26 (d=12.2in, 26lb/ft). Section properties are from AISC A6 shapes database, converted to metric units.

What steel grade is standard for W310x39? Typically G40.21 350W per CSA G40.21. Also available as 300W, 350WT, 400W. Verify grade requirements with project specifications.

What is the mass of a W310x39 beam? 38.7 kg/m. A 12m length weighs approximately 464 kg.

What is the section modulus of W310x39? Sx = 547 cm³ (strong axis) and Sy = 88 cm³ (weak axis). The plastic section modulus Zx = 610 cm³.

Related Pages


Educational reference only. Verify all section properties against the current CISC Handbook of Steel Construction and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.