MC8X8.5 Steel MC-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 8 | 203.2 mm |
| Flange Width (bf) | 1.87 | 4.75 cm |
| Flange Thickness (tf) | 0.311 | 7.9 mm |
| Web Thickness (tw) | 0.179 | 4.5 mm |
| Area (A) | 2.5 in² | 16.1 cm² |
| Weight | 8.5 lb/ft | 12.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 23.3 | 0.624 | in⁴ |
| Elastic Section Modulus (S) | 5.82 | 0.431 | in³ |
| Plastic Section Modulus (Z) | 6.95 | 0.875 | in³ |
| Radius of Gyration (r) | 3.05 | 0.5 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.059 | in⁴ |
| Warping Constant (Cw) | 8.21 | in⁶ |
| Distance Between Flange Centroids (ho) | 7.69 | in |
| Effective Radius (rts) | 0.624 | in |
Design Resources
- Beam Capacity Calculator — Check MC8X8.5 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 MC8X8.5 channel? 8.5 lb/ft (12.6 kg/m).
What is the section modulus of MC8X8.5? Sx = 5.82 in³, Zx = 6.95 in³ (strong axis). Sy = 0.431 in³, Zy = 0.875 in³ (weak axis).
What steel grade is standard for MC8X8.5? ASTM A36 (Fy = 36 ksi) for MC-shapes. Verify with mill certificate.
What is the moment of inertia of MC8X8.5? Ix = 23.3 in⁴ about the strong axis and Iy = 0.624 in⁴ about the weak axis. The radius of gyration is rx = 3.05 in and ry = 0.5 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.