Standard HDG C Channel Steel Purlin – General Construction Grade
Product Overview
Hot-dip galvanized C channel steel purlin is the most widely used cold-formed secondary framing member for steel building envelopes. Manufactured by roll forming structural galvanized steel strip into a C-shaped cross-section, it delivers reliable load-bearing capacity, consistent dimensional accuracy and long-term atmospheric corrosion protection. This standard grade is optimized for industrial factory and warehouse roofing and wall cladding, providing the most economical solution for general light steel building applications.
Why Choose CNB C Channel Purlins?
We manufacture C purlins on high-precision automated cold roll forming lines using certified structural galvanized steel. Every section undergoes strict straightness, dimensional and zinc coating inspection to ensure compatibility with standard building hardware and cladding systems. With large ready stock of standard sizes and in-house punching and cutting capabilities, we support both small commercial and large industrial construction projects with fast delivery and competitive pricing.
Key Specifications
| Item | Specification |
|---|---|
| Product Name | Hot-Dip Galvanized C Channel Steel Purlin |
| Steel Grade | Q235B / S250GD structural grade |
| Zinc Coating Mass | Z80 – Z180g/m² (Z120 standard) |
| Material Thickness | 1.5mm – 3.0mm |
| Section Height Range | 80mm – 300mm |
| Standard Lengths | 6m / 9m / 12m, custom cut |
| Punching Option | Standard pre-punched holes for cladding fastening |
| Straightness Tolerance | ≤1.5mm per meter |
| Applicable Standards | EN 10162, GB/T 6728 |
| Typical Service Life | 15–20 years (inland environment) |
Core Advantages
- Cost-effective framing: The most widely specified secondary framing for industrial steel buildings.
- Consistent quality: Tight dimensional tolerances for fast modular construction.
- Reliable corrosion protection: Full hot-dip galvanizing for long outdoor service life.
- Installation ready: Pre-punched and cut-to-length options reduce on-site labor.
- Flexible design: Wide range of sizes and thicknesses for different load and span requirements.
Applications
This standard galvanized C purlin is widely used for industrial factory roofing, warehouse wall cladding, light steel building framing, prefabricated house structures and general secondary building support systems.
Get a Quotation
We supply C, Z and U channel purlins in various grades, sizes and coating weights for steel construction projects. Project-specific load calculations and custom fabrication options are available upon request. Contact our structural steel team for a competitive project quotation.
