W12X336 Steel Beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 16.80 | in (426.7 mm) |
| Flange Width (bf) | 13.40 | in (340.4 mm) |
| Flange Thickness (tf) | 2.96 | in |
| Web Thickness (tw) | 1.78 | in |
| Area (A) | 98.90 | in² (638.1 cm²) |
| Weight | 336 | lb/ft (500 kg/m) |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 4,060 | 1,190 | in⁴ |
| Elastic Section Modulus (S) | 483 | 177 | in³ |
| Plastic Section Modulus (Z) | 603 | 274 | in³ |
| Radius of Gyration (r) | 6.41 | 3.47 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 243 | in⁴ |
| Warping Constant (Cw) | 57,000 | in⁶ |
| Distance Between Flange Centroids (ho) | 13.80 | in |
| Effective Radius (rts) | 4.13 | in |
Design Resources
- Beam Capacity Calculator — Check W12X336 for your span and loads
- Column Capacity Calculator — Check W12X336 as a column
- Section Properties Database — Compare with other sections
- Steel Beam Sizes Reference — Full W-shape dimension table
- Steel Grades Reference — A992/A572 material properties
Frequently Asked Questions
What is the weight of a W12X336 beam? 336 lb/ft (500 kg/m). A 40-ft length weighs approximately 13,440 lbs.
What is the section modulus of W12X336? Sx = 483 in³ (strong axis) and Sy = 177 in³ (weak axis). The plastic section modulus Zx = 603 in³ and Zy = 274 in³.
What steel grade is standard for W12X336? 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 W12X336? Ix = 4060 in⁴ about the strong axis and Iy = 1190 in⁴ about the weak axis. The radius of gyration is rx = 6.41 in and ry = 3.47 in.
Related Pages
- Steel Beam Sizes Reference
- Beam Capacity Calculator
- Column Capacity Calculator
- Section Properties Database
Educational reference only. Verify all section properties against the current AISC Manual and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.