C Channer Steel
C Channel Steel, also known as C purlin, is cold-formed lightweight section steel manufactured from hot rolled steel strip. It features folded edge lips for improved torsional stiffness. Available in bare black and galvanized finishes, it delivers outstanding cost efficiency. Widely adopted in steel structure buildings, photovoltaic brackets, container frames and light-duty mechanical supports.
Available Grades
Q235B
The most universal grade for C channel steel with balanced strength and excellent formability. Suitable for general roofing & wall purlins, conventional factory buildings under normal ambient temperature conditions.
Q355B
Low alloy high strength grade with higher yield strength than Q235B. Allows thinner material design to reduce overall weight, ideal for large-span workshops and photovoltaic support projects.
DX51D+Z
Hot-dip galvanized base material with uniform zinc coating. Offers superior anti-corrosion performance, perfect for outdoor, coastal and humid environment constructions without extra painting.
Product Features
- Unique C-shaped lip design greatly enhances torsion resistance, maintaining stable structure under lateral wind loads.
- Light self-weight yet high structural efficiency, effectively lowering the total load of main building frameworks.
- Convenient pre-punching service for bolt connection, accelerating on-site assembly and shortening construction cycles.
- Multiple surface options: black raw finish, pre-galvanized & post-galvanized to match different anti-rust requirements.
- Flexible customizable dimensions, adjustable height, width and thickness to meet diversified engineering drawing demands.
- Smooth forming surface with minimal internal stress, effectively avoiding deformation after cutting and installation.
Applications
- Steel Structure Factory BuildingsServe as roof purlins and wall purlins to support metal roof sheets and wall panels for warehouses, workshops and logistics parks.
- Photovoltaic Solar Support SystemsConstruct ground and rooftop solar panel mounting frames, especially popular for large-scale solar farm projects.
- Container & Prefab House ManufacturingProduce side frames, bottom supports and partition skeleton components for shipping containers and temporary modular houses.
- Light Machinery & Equipment RacksFabricate equipment bases, protective frames and storage rack supports for light industrial production lines.
- Traffic & Guardrail EngineeringUsed for auxiliary support frames of highway sound barriers, roadside guardrail brackets and small traffic sign structures.
Product Advantages
- Economical lightweight design cuts raw material investment and reduces transportation costs compared with hot rolled channel steel.
- Easy transportation and stacking; standardized length options simplify logistics planning for large construction projects.
- One-stop processing service: customized size, fixed-distance punching and cutting directly according to construction drawings.
- Stable dimensional precision from continuous cold forming lines, ensuring seamless matching during on-site assembly.
- Flexible anti-corrosion solutions, galvanized options eliminate the need for on-site secondary painting work.
- Complete export supporting documents, factory test certificates available to speed up customs clearance for global projects.
Technical Data Table (Typical Mechanical Properties)
| Parameter Unit | Q235B | Q355B | DX51D+Z |
| Tensile Strength (MPa) | 360–480 | 470–630 | ≥270 |
| Yield Strength (MPa) | ≥235 | ≥355 | ≥140 |
| Elongation (%) | ≥25 | ≥22 | ≥30 |
| Density (g/cm³) | 7.85 | 7.85 | 7.85 |
| Common Thickness Range (mm) | 1.5–6.0 | 1.5–6.0 | 1.2–4.0 |
Why Choose Us
- Specialized cold formed C channel steel manufacturer with more than 12 years export experience, large stock of standard specifications.
- Continuous automatic forming production lines, strictly control straightness, dimension tolerance and forming quality.
- Independent QC inspection, every batch sampled for mechanical property and dimension testing before delivery.
- Flexible order policy: accept full-container bulk orders and small trial orders for engineering sample testing.
- Deep processing available: customized length, hole punching, cutting and galvanization based on customer drawings.
- Professional export team familiar with FOB, CFR, CIF terms, stable shipment arrangement for worldwide ports.
Packaging & Shipping
Packaging
- C channel steel bundled by high-strength steel straps; plastic end caps installed to prevent section deformation and edge scratches.
- Wrapped with waterproof woven fabric; desiccants added for long-distance sea transportation to resist moisture.
- Clear shipping marks, specification, grade and length labels printed on each bundle for easy identification.
Shipping
- Container transportation: 20GP / 40HQ containers, secured firmly to avoid shifting during transit.
- Bulk vessel delivery is available for super large construction project orders to save ocean freight.
- Main loading ports: Ningbo, Shanghai, Qingdao, Tianjin; all mainstream international trade terms can be negotiated.
FAQ
- Q1: What sizes of C channel steel can you supply?
A: We provide C channel steel from C80 to C300 series, thickness ranges 1.2mm–6.0mm. Custom sizes are acceptable upon your drawings. - Q2: Can you offer pre-punching service for bolt installation?
A: Yes, we support customized hole punching according to your installation requirements. You can provide technical drawings for quotation. - Q3: What surface treatments are available?
A: Raw black finish, pre-galvanized and post hot-dip galvanized C channel steel are available for different corrosion resistance demands. - Q4: What documents can be provided for customs clearance and bidding?
A: Each shipment comes with Mill Test Certificate. Third-party inspection by SGS or BV can be arranged as required. - Q5: How long is your delivery lead time?
A: Please check with our sales team. - Q6: Can galvanized C purlins be used in coastal areas?
A: Hot-dip galvanized C channel steel has excellent salt fog resistance, which fits coastal humid and saline environments.
