W24X103 Steel Beam — Section Properties

Dimensions

Property Value Unit
Depth (d) 24.50 in (622.3 mm)
Flange Width (bf) 9 in (228.6 mm)
Flange Thickness (tf) 0.98 in
Web Thickness (tw) 0.55 in
Area (A) 30.30 in² (195.5 cm²)
Weight 103 lb/ft (153 kg/m)

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 3,000 119 in⁴
Elastic Section Modulus (S) 245 26.50 in³
Plastic Section Modulus (Z) 280 41.50 in³
Radius of Gyration (r) 10 1.99 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 7.07 in⁴
Warping Constant (Cw) 16,600 in⁶
Distance Between Flange Centroids (ho) 23.50 in
Effective Radius (rts) 2.40 in

Design Resources

Frequently Asked Questions

What is the weight of a W24X103 beam? 103 lb/ft (153 kg/m). A 40-ft length weighs approximately 4,120 lbs.

What is the section modulus of W24X103? Sx = 245 in³ (strong axis) and Sy = 26.5 in³ (weak axis). The plastic section modulus Zx = 280 in³ and Zy = 41.5 in³.

What steel grade is standard for W24X103? 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 W24X103? Ix = 3000 in⁴ about the strong axis and Iy = 119 in⁴ about the weak axis. The radius of gyration is rx = 10 in and ry = 1.99 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.