MC6X18 Steel MC-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 6 | 152.4 mm |
| Flange Width (bf) | 3.5 | 8.89 cm |
| Flange Thickness (tf) | 0.475 | 12.1 mm |
| Web Thickness (tw) | 0.379 | 9.6 mm |
| Area (A) | 5.29 in² | 34.1 cm² |
| Weight | 18 lb/ft | 26.8 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 29.7 | 5.88 | in⁴ |
| Elastic Section Modulus (S) | 9.89 | 2.47 | in³ |
| Plastic Section Modulus (Z) | 11.7 | 4.68 | in³ |
| Radius of Gyration (r) | 2.37 | 1.05 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.379 | in⁴ |
| Warping Constant (Cw) | 34.6 | in⁶ |
| Distance Between Flange Centroids (ho) | 5.53 | in |
| Effective Radius (rts) | 1.2 | in |
Design Resources
- Beam Capacity Calculator — Check MC6X18 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 MC6X18 channel? 18 lb/ft (26.8 kg/m).
What is the section modulus of MC6X18? Sx = 9.89 in³, Zx = 11.7 in³ (strong axis). Sy = 2.47 in³, Zy = 4.68 in³ (weak axis).
What steel grade is standard for MC6X18? ASTM A36 (Fy = 36 ksi) for MC-shapes. Verify with mill certificate.
What is the moment of inertia of MC6X18? Ix = 29.7 in⁴ about the strong axis and Iy = 5.88 in⁴ about the weak axis. The radius of gyration is rx = 2.37 in and ry = 1.05 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.