C-Channel Steel Carbon Steel — Factory Direct Supplier | Huaxia-Steel
Carbon steel C-channel—also known as C-purlin or lip channel—is a cold-formed structural section with a C-shaped cross-section and inward-turned lips. It is lighter than traditional hot-rolled channels yet offers excellent strength-to-weight ratios for purlins, girts, wall studs, and framing systems. Huaxia-Steel produces C-channel in galvanized, black, and pre-painted finishes with custom hole punching and length cutting.
Product Overview
C-channel steel is roll-formed from hot-dip galvanized or cold-rolled strip through a series of contoured rollers. The lips increase local buckling resistance and provide a flat surface for bolted connections. Standard lengths are 6 m and 12 m, but custom cut-to-length service is available for prefabricated building projects.
Specifications
| Parameter | Standard / Range |
|---|---|
| Height (h) | 80 mm – 300 mm |
| Flange Width (b) | 40 mm – 100 mm |
| Lip Width (c) | 10 mm – 20 mm |
| Thickness (t) | 1.5 mm – 3.5 mm |
| Steel Grade | Q235B, Q345B, S235JR, S355JR, SS400 |
| Zinc Coating | Z80 – Z275 (g/m²) for galvanized sections |
| Length | Custom up to 12 m |
Manufacturing Standards
- GB/T 6723 – Cold Formed Steel Sections
- EN 10162 – Cold-rolled Steel Sections
- ASTM A653 – Hot-Dip Galvanized Structural Steel
- JIS G3352 – Prefabricated Light Gauge Steel Structures
Section Properties (Example: C100×50×20×2.5)
| Property | Value |
|---|---|
| Section Area | 5.36 cm² |
| Weight per Meter | 4.21 kg/m |
| Moment of Inertia (Ix) | 83.6 cm⁴ |
| Section Modulus (Wx) | 16.7 cm³ |
| Radius of Gyration (ix) | 3.95 cm |
Applications
- Metal building purlins and side girts
- Solar panel mounting rails and support frames
- Cold-storage and warehouse wall framing
- Mezzanine floor joists and platforms
- Light-gauge steel housing studs
Quality Assurance
Dimensional tolerances are checked every 500 mm for web height, flange width, lip size, and straightness. Galvanized coating weight is tested by magnetic gauge per ISO 2178. Yield strength and elongation are verified on coil samples before forming. All orders include a mill test certificate with chemical analysis and mechanical properties.
Packing and Shipping
C-channels are nested in bundles of 50–100 pieces, steel-banded, and wrapped in waterproof kraft paper. For galvanized sections, plastic end caps prevent handling damage to the coating. Bundles are loaded flat or on edge in containers with wooden separators to prevent deformation. Weight per bundle is typically 1.5–2.5 metric tons.
Order C-Channel Steel for Your Project
Need custom-sized C-purlin with punched holes, galvanized finish, or cut-to-length? Send us your section size, quantity, and destination for a factory-direct quote.
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