S350GD High Strength C Steel Purlin – Long-Span Industrial Grade
Product Overview
S350GD high strength C channel purlin is a premium cold-formed structural section designed for large-span and high-load building applications. Built on micro-alloyed high strength galvanized steel with optimized section geometry, it delivers superior load-bearing capacity and longer span capability compared with standard mild steel purlins. This grade reduces total steel consumption and foundation requirements for industrial and logistics buildings, delivering lower total installed cost while improving structural reliability.
Why Choose CNB High Strength C Purlins?
Our high strength C purlins are sourced from certified structural steel mills with strict control over mechanical properties and zinc coating quality. Every section undergoes full dimensional and straightness inspection to ensure consistent performance in large-scale building installations. We work closely with construction designers to optimize section design for specific project conditions, maximizing cost efficiency and structural safety.
Key Specifications
| Item | Specification |
|---|---|
| Product Name | S350GD High Strength C Channel Purlin |
| Steel Grade | S350GD high strength low alloy steel |
| Zinc Coating Mass | Z120 – Z275g/m² |
| Material Thickness | 2.0mm – 4.0mm |
| Section Height Range | 100mm – 400mm |
| Minimum Yield Strength | ≥350MPa |
| Standard Lengths | 6m / 9m / 12m, custom |
| Straightness Tolerance | ≤1.0mm per meter |
| Applicable Standards | EN 10162, GB/T 6728 |
| Design Life | 20–25 years (industrial grade) |
Core Advantages
- Long span capability: Reduces number of main beams and foundation cost.
- Weight efficient: Higher strength lowers total steel consumption per square meter.
- Heavy load rated: Suitable for high wind and heavy snow load regions.
- Industrial grade quality: Designed for large-scale industrial and logistics buildings.
- Cost optimized: Lower total installed cost despite higher per-ton material price.
Applications
This S350GD high strength C purlin is widely used for large-span factory buildings, logistics warehouse roofs, high-load industrial facilities, cold storage buildings and large-span steel structure envelopes.
Get a Quotation
We supply high strength C/Z purlins in various grades, sizes and coating weights for industrial and large-span construction projects. Structural load calculations and project-specific optimization are available upon request. Contact our structural steel team for a detailed quotation.
