W310x202 G40.21 350W — Canadian W-Shape Section Properties

Approximate equivalent of W12X136 per AISC A6. Approx. equivalent of W12X136. Verify against CISC Handbook.

Dimensions (Metric)

Property Value Unit
Depth (d) 340.4 mm
Flange Width (bf) 315.0 mm
Flange Thickness (tf) 31.8 mm
Web Thickness (tw) 20.1 mm
Cross-Sectional Area (A) 257.4 cm²
Mass 202.4 kg/m

Elastic Section Properties (Metric)

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 51,613 16,566 cm⁴
Elastic Section Modulus (S) 3,048 1,052 cm³
Plastic Section Modulus (Z) 3,507 1,606 cm³
Radius of Gyration (r) 14.17 8.03 cm

Torsional Properties

Property Value Unit
Torsional Constant (J) 770 cm⁴
Warping Constant (Cw) 3,946,950 cm⁶
Distance Between Flange Centroids (ho) 30.99 cm
Effective Radius (rts) 9.17 cm

Imperial Reference

Property Value Unit
Depth (d) 13.40 in
Flange Width (bf) 12.40 in
Area (A) 39.90 in²
Weight 136 lb/ft

Design Resources

Frequently Asked Questions

What is the W310x202 equivalent to in US units? It approximates a W12X136 (d=13.4in, 136lb/ft). Section properties are from AISC A6 shapes database, converted to metric units.

What steel grade is standard for W310x202? 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 W310x202 beam? 202.4 kg/m. A 12m length weighs approximately 2,429 kg.

What is the section modulus of W310x202? Sx = 3,048 cm³ (strong axis) and Sy = 1,052 cm³ (weak axis). The plastic section modulus Zx = 3,507 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.