W5X16 Steel Beam — Section Properties

Dimensions

Property Value Unit
Depth (d) 5.01 in (127.3 mm)
Flange Width (bf) 5 in (127.0 mm)
Flange Thickness (tf) 0.36 in
Web Thickness (tw) 0.24 in
Area (A) 4.71 in² (30.4 cm²)
Weight 16 lb/ft (24 kg/m)

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 21.40 7.51 in⁴
Elastic Section Modulus (S) 8.55 3 in³
Plastic Section Modulus (Z) 9.63 4.58 in³
Radius of Gyration (r) 2.13 1.26 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 0.19 in⁴
Warping Constant (Cw) 40.60 in⁶
Distance Between Flange Centroids (ho) 4.65 in
Effective Radius (rts) 1.43 in

Design Resources

Frequently Asked Questions

What is the weight of a W5X16 beam? 16 lb/ft (24 kg/m). A 40-ft length weighs approximately 640 lbs.

What is the section modulus of W5X16? Sx = 8.6 in³ (strong axis) and Sy = 3 in³ (weak axis). The plastic section modulus Zx = 9.6 in³ and Zy = 4.6 in³.

What steel grade is standard for W5X16? Typically ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for W-shapes. Also available in A572 Grade 50 or A36. Verify with mill certificate.

What is the moment of inertia of W5X16? Ix = 21.4 in⁴ about the strong axis and Iy = 7.5 in⁴ about the weak axis. The radius of gyration is rx = 2.13 in and ry = 1.26 in.

Related Pages


Educational reference only. Verify all section properties against the current AISC Manual and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.