MC9X23.9 Steel MC-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 9 | 228.6 mm |
| Flange Width (bf) | 3.45 | 8.76 cm |
| Flange Thickness (tf) | 0.55 | 14.0 mm |
| Web Thickness (tw) | 0.4 | 10.2 mm |
| Area (A) | 7.02 in² | 45.3 cm² |
| Weight | 23.9 lb/ft | 35.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 84.9 | 7.14 | in⁴ |
| Elastic Section Modulus (S) | 18.9 | 2.89 | in³ |
| Plastic Section Modulus (Z) | 22.5 | 5.51 | in³ |
| Radius of Gyration (r) | 3.48 | 1.01 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.599 | in⁴ |
| Warping Constant (Cw) | 98 | in⁶ |
| Distance Between Flange Centroids (ho) | 8.45 | in |
| Effective Radius (rts) | 1.18 | in |
Design Resources
- Beam Capacity Calculator — Check MC9X23.9 for your span and loads
- Section Properties Database — Compare with other sections
- Steel Beam Sizes Reference — Full dimension table
- Steel Grades Reference — Material properties
Frequently Asked Questions
What is the weight of a MC9X23.9 channel? 23.9 lb/ft (35.6 kg/m).
What is the section modulus of MC9X23.9? Sx = 18.9 in³, Zx = 22.5 in³ (strong axis). Sy = 2.89 in³, Zy = 5.51 in³ (weak axis).
What steel grade is standard for MC9X23.9? ASTM A36 (Fy = 36 ksi) for MC-shapes. Verify with mill certificate.
What is the moment of inertia of MC9X23.9? Ix = 84.9 in⁴ about the strong axis and Iy = 7.14 in⁴ about the weak axis. The radius of gyration is rx = 3.48 in and ry = 1.01 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.