W200x42 G40.21 350W — Canadian W-Shape Section Properties

Approximate equivalent of W8X28 per AISC A6. Approx. equivalent of W8X28. Verify against CISC Handbook.

Dimensions (Metric)

Property Value Unit
Depth (d) 204.7 mm
Flange Width (bf) 166.1 mm
Flange Thickness (tf) 11.8 mm
Web Thickness (tw) 7.2 mm
Cross-Sectional Area (A) 53.2 cm²
Mass 41.7 kg/m

Elastic Section Properties (Metric)

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 4,079 903 cm⁴
Elastic Section Modulus (S) 398 109 cm³
Plastic Section Modulus (Z) 446 166 cm³
Radius of Gyration (r) 8.76 4.11 cm

Torsional Properties

Property Value Unit
Torsional Constant (J) 22 cm⁴
Warping Constant (Cw) 83,772 cm⁶
Distance Between Flange Centroids (ho) 19.30 cm
Effective Radius (rts) 4.67 cm

Imperial Reference

Property Value Unit
Depth (d) 8.06 in
Flange Width (bf) 6.54 in
Area (A) 8.25 in²
Weight 28 lb/ft

Design Resources

Frequently Asked Questions

What is the W200x42 equivalent to in US units? It approximates a W8X28 (d=8.1in, 28lb/ft). Section properties are from AISC A6 shapes database, converted to metric units.

What steel grade is standard for W200x42? 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 W200x42 beam? 41.7 kg/m. A 12m length weighs approximately 500 kg.

What is the section modulus of W200x42? Sx = 398 cm³ (strong axis) and Sy = 109 cm³ (weak axis). The plastic section modulus Zx = 446 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.