W310x312 G40.21 350W — Canadian W-Shape Section Properties

Approximate equivalent of W12X210 per AISC A6. Approx. equivalent of W12X210. Verify against CISC Handbook.

Dimensions (Metric)

Property Value Unit
Depth (d) 373.4 mm
Flange Width (bf) 325.1 mm
Flange Thickness (tf) 48.3 mm
Web Thickness (tw) 30.0 mm
Cross-Sectional Area (A) 398.7 cm²
Mass 312.5 kg/m

Elastic Section Properties (Metric)

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 89,073 27,638 cm⁴
Elastic Section Modulus (S) 4,785 1,704 cm³
Plastic Section Modulus (Z) 5,703 2,606 cm³
Radius of Gyration (r) 14.96 8.33 cm

Torsional Properties

Property Value Unit
Torsional Constant (J) 2,693 cm⁴
Warping Constant (Cw) 7,303,200 cm⁶
Distance Between Flange Centroids (ho) 32.51 cm
Effective Radius (rts) 9.68 cm

Imperial Reference

Property Value Unit
Depth (d) 14.70 in
Flange Width (bf) 12.80 in
Area (A) 61.80 in²
Weight 210 lb/ft

Design Resources

Frequently Asked Questions

What is the W310x312 equivalent to in US units? It approximates a W12X210 (d=14.7in, 210lb/ft). Section properties are from AISC A6 shapes database, converted to metric units.

What steel grade is standard for W310x312? 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 W310x312 beam? 312.5 kg/m. A 12m length weighs approximately 3,750 kg.

What is the section modulus of W310x312? Sx = 4,785 cm³ (strong axis) and Sy = 1,704 cm³ (weak axis). The plastic section modulus Zx = 5,703 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.