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high strength c section purlin for steel structure building-0

Steel Structure Purlin

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High-Strength C Section Purlin For Steel Structure Building

Engineered for durability and efficiency, Glostar’s C Section Purlins serve as the ideal roof and wall framing solution for pre-engineered steel buildings. Manufactured from high-tensile galvanized steel, they offer excellent corrosion resistance and superior load-bearing capacity. Available in customizable sizes with pre-punched holes for rapid on-site installation.

  • Overview
  • Technical Specifications
  • Applicable Scenarios
  • Manufacturing Process
  • Recommended Products
Product details

Our C Section Purlin for Steel Structure Building is the ideal solution for roof and wall support in modern construction. Manufactured using advanced cold-roll forming technology, our C-purlins provide a lightweight yet incredibly strong secondary structural framing system.

Whether you are constructing a warehouse, workshop, or agricultural shed, our C channel steel beams are designed to span lengths efficiently, supporting roof panels and wall cladding while reducing the overall dead weight of the building. We offer fully customized dimensions and pre-punched holes to ensure rapid, bolt-on installation at your job site.

Why Choose Our C Section Purlins?

  • Superior Corrosion Resistance: Available in Hot-Dip Galvanized (Z180 - Z275) or Galvalume finishes, ensuring long service life even in humid environments.
  • High Tensile Strength: We use high-grade steel (Q235B, Q355B, G450) to ensure high load-bearing capacity for heavy roofing materials.
  • Precision Roll Forming: Produced by fully automatic PLC-controlled machines, ensuring exact dimensions, straightness, and uniform thickness.
  • Easy Installation: We offer pre-punched holes (round or elongated) based on your drawings. This eliminates on-site drilling, saving up to 30% in labor time.
  • Versatile Sizes: A wide range of web heights and flange sizes are available to meet specific structural engineering requirements.

Difference Between C Purlin and Z Purlin

While both are used for steel structure buildings, they have different structural behaviors: 

C Purlins: Ideal for simple spans and are easier to install on walls and door frames due to their flat back. 

Z Purlins: Can be overlapped (nested) at the supports, which increases the load-bearing capacity for continuous spans across multiple bays. 

Need advice? Our engineers can help you decide which profile is best for your specific building design.

C Section PurlinC Section Purlin

Technical Specifications

We can customize the C Section Purlin size according to your specific requirements. Below are our standard production ranges:

Parameter Specification Range
Material Standard GB, ASTM, EN,ect
Steel Grade Q235B, Q345B,Q355B,ect
Purlin Galvanized C Section Steel / Cold-rolled C Section Steel
Insulation Material EPS, PU, Fiberglass, Rockwool
Packing Method According to customer’s requirement, load into 40GP/20GP/40HQ/40OT
Color Customer’s Choice / White
Design Style Modern / Customized
Length Customized
Applicable Scenarios

Due to their versatility, C Section Purlins are widely used in various steel structure projects:

Roof Purlins & Wall Girts: The primary support for metal roofing sheets and wall cladding in warehouses and factories.

Solar Mounting Systems: Used as sturdy support structures for solar panel racking.

Mezzanine Floors: Serving as secondary beams for lightweight floor systems.

Door & Window Framing: Framing support within steel buildings.

steel structuressteel structures for warehousesteel structures for Solar Mounting Systems

Manufacturing Process

We utilize advanced cold-bending lines that integrate uncoiling, leveling, punching, and roll forming into a single continuous process.

  • Slitting: Cutting coil to precise width.
  • Punching: Automatic computer-controlled punching for bolt holes.
  • Roll Forming: Gradually shaping the steel strip into the C profile.
  • Cutting: Flying shear cutting to exact length with zero deformation.

steel structures design

Frequently Asked Questions

Q: Can you produce C purlins with pre-punched holes?
A: Yes, we can pre-punch holes on the web or flanges according to your CAD drawings. This makes on-site bolt connection much faster.

Q: What is the zinc coating thickness for your galvanized C purlins?
A: Our standard is Z120 (approx. 10 microns) or Z275 (approx. 20 microns) for high corrosion resistance. We can customize the zinc coating based on your project's environmental requirements.

Q: How do you pack C section purlins for export?
A: We pack them in bundles secured with steel strips. For ease of unloading, we use wooden or steel pallets if requested. We maximize container loading space by nesting the C purlins.

Get a Competitive Quote for C Section Purlins

Need high-quality C Section Purlins for your steel structure building project? Contact [Company Name] today for factory-direct prices and fast delivery.

Get a Free Quote for Your Project

Whether it's a steel workshop, cold storage, or cleanroom system, we offer competitive factory prices and professional design.
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high strength c section purlin for steel structure building-1

Get a Free Quote for Your Project

Whether it's a steel workshop, cold storage, or cleanroom system, we offer competitive factory prices and professional design.
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