C-Section Steel
C-section steel is a type of cold-formed steel with a “C”-shaped cross-section, manufactured by cold bending hot-rolled steel coils. It features thin walls, light weight, and excellent section properties.
✔ Lightweight & Easy Installation: 30% lighter than traditional channel steel, suitable for rapid on-site assembly.
✔ High Strength & Stability: Good bending resistance, capable of bearing significant loads without deformation.
✔ Wide Applications: Used in building, machinery, and transportation industries for constructing purlins, brackets, and support structures.
Main Applications
🏗️ Construction: Roof purlins, wall beams, and support frames for light steel structures.
⚙️ Manufacturing: Equipment supports, conveyor frames, and automotive components.
🚧 Engineering: Bridge supports, tunnel linings, and temporary structures.
C-Section Steel Standard Size Table (Unit: mm)
(Note: The following are common market specifications. Special sizes can be customized, with length typically ≤12 meters.)
| Model | Height (H) | Leg Width (B) | Flange Width (C) | Thickness (t) | Theoretical Weight (kg/m) |
|---|---|---|---|---|---|
| C80×40×20×2.5 | 80 | 40 | 20 | 2.5 | 3.925 |
| C80×40×20×3 | 80 | 40 | 20 | 3.0 | 4.710 |
| C100×50×20×2.5 | 100 | 50 | 20 | 2.5 | 4.710 |
| C100×50×20×3 | 100 | 50 | 20 | 3.0 | 5.652 |
| C120×60×20×2.5 | 120 | 60 | 20 | 2.5 | 5.495 |
| C120×60×20×3 | 120 | 60 | 20 | 3.0 | 6.594 |
| C140×50×20×2.5 | 140 | 50 | 20 | 2.5 | 5.495 |
| C140×50×20×3 | 140 | 50 | 20 | 3.0 | 6.594 |
| C160×50×20×2.5 | 160 | 50 | 20 | 2.5 | 5.888 |
| C160×60×20×3 | 160 | 60 | 20 | 3.0 | 7.536 |
| C200×70×20×2.5 | 200 | 70 | 20 | 2.5 | 7.458 |
| C200×70×20×3 | 200 | 70 | 20 | 3.0 | 8.949 |
The specification representation method of C-section steel: C (Height × Leg Width × Flange Width × Thickness) (e.g., C80×40×20×2.5).
- C: Represents the C-section steel shape.
- Height (H): The vertical height of the C-section (e.g., 80mm in C80).
- Leg Width (B): The width of the horizontal legs (e.g., 40mm in C80×40×20×2.5).
- Flange Width (C): The width of the flange (horizontal extension) (e.g., 20mm in C80×40×20×2.5).
- Thickness (t): The thickness of the steel (e.g., 2.5mm in C80×40×20×2.5).
Example: C100×50×20×3 means:
- Height (H) = 100mm, Leg Width (B) = 50mm, Flange Width (C) = 20mm, Thickness (t) = 3mm.
