C-shaped steel
High-Precision Cold-Formed C-Shaped Steel (C-Purlins) for Modern Construction
Our premium C-shaped steel is the definitive solution for lightweight structural framing and roofing systems. As a specialized C-purlin manufacturer, we utilize advanced cold-roll forming technology to produce sections with exceptional dimensional accuracy and a high strength-to-weight ratio. Engineered from high-tensile galvanized or black steel strips, our C-channels are widely used as purlins, girts, and wall studs in industrial warehouses and solar mounting systems. Meeting international standards like ASTM A653 and EN 10346, our C-shaped steel ensures rapid on-site assembly and long-term structural integrity for any architectural project.
Versatile C-Shaped Steel: The Backbone of High-Efficiency Light Steel Structures
Engineered for Excellence: The C-Section Advantage
C-shaped steel, also known as C-purlins or C-channels, is a cold-formed structural member characterized by its unique “C” profile. Unlike hot-rolled beams, C-shaped steel is manufactured by feeding steel coils through a series of rollers at room temperature. This process allows for thinner, lighter sections that maintain remarkable structural rigidity, making them the preferred choice for modern pre-engineered buildings (PEB) and renewable energy infrastructures.
Technical Specifications & Customization
Our factory operates high-speed, automated production lines capable of delivering a wide range of specifications tailored to your engineering needs:
Material Grades: Q235, Q355 (S355JR), ASTM A653 (Galvanized), and high-strength G450/G550 grades.
Web Height (H): 80mm – 300mm
Flange Width (B): 40mm – 100mm
Lip Length (C): 10mm – 25mm
Thickness (T): 1.5mm – 3.5mm
Surface Treatment: Pre-galvanized (Z120–Z275 coating), Hot-dipped galvanized, or Black (uncoated) for welding.
Key Benefits of Our C-Shaped Steel
High Strength-to-Weight Ratio: Dramatically reduces the overall weight of the steel structure, leading to significant savings in foundation and transportation costs.
Pre-Punched Precision: We offer online automated punching services. Our C-purlins come with pre-drilled holes based on your blueprints, ensuring “plug-and-play” installation on-site.
Corrosion Resistance: Our galvanized C-sections offer superior protection against oxidation, making them ideal for outdoor solar plants and coastal industrial zones.
Cost-Effective Design: Cold-forming allows for precise lengths (up to 12 meters or more), minimizing material waste and eliminating the need for on-site cutting.
Comparison: C-Purlin vs. Z-Purlin
| Feature | C-Shaped Steel (C-Purlin) | Z-Shaped Steel (Z-Purlin) |
| Shape | Symmetrical “C” Profile | Asymmetrical “Z” Profile |
| Overlapping | Cannot be overlapped | Can be lapped for continuous spans |
| Typical Use | Simple spans, wall girts, door frames | Continuous spans, heavy roof loads |
| Installation | Easier to align and bolt | Requires more complex nesting |
Primary Applications
Our C-shaped steel is a versatile component found in numerous sectors:
Industrial Warehousing: Secondary framing for roofs (purlins) and walls (girts).
Solar Mounting Systems: The primary structural rails for ground-mounted and rooftop solar arrays.
Light Steel Villas: Load-bearing wall studs and floor joists for residential steel framing.
Mezzanine Floors: Providing lightweight support for internal storage platforms.
Why Partner with Our Factory?
As a specialized manufacturer, we provide direct factory pricing and a comprehensive Mill Test Certificate (MTC) with every batch. Our quality control team monitors the rolling tolerance and zinc coating thickness at every interval. With a massive monthly production capacity, we guarantee short lead times for even the largest international infrastructure projects.





