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| Property | Parameter | Description |
|---|---|---|
| Product Name | Cold Formed C Channel | Cold formed steel C channel section for structural and general construction use |
| Material Grade | Q235B / Q345B / SS400 / S235JR / S355JR / ASTM A36 | Multiple international equivalent grades available upon request |
| Standard Compliance | GB/T 6725, ASTM A1011, EN 10162, JIS G 3350 | Manufactured in accordance with international cold forming standards |
| Carbon (C) | ≤ 0.20% | Typical value for Q235B/A36 grade; ensures good weldability |
| Manganese (Mn) | ≤ 1.40% | Enhances strength and hardness of the steel matrix |
| Phosphorus (P) | ≤ 0.035% | Controlled to minimize brittleness |
| Sulfur (S) | ≤ 0.035% | Kept low to improve ductility and toughness |
| Silicon (Si) | ≤ 0.35% | Acts as deoxidizer during steelmaking process |
| Tensile Strength | 370 – 510 MPa | Per ASTM A36 / GB/T 700 standard requirements |
| Yield Strength | 235 – 345 MPa | Varies by material grade; Q345B ≥ 345 MPa, Q235B ≥ 235 MPa |
| Elongation | ≥ 20% | Measured on standard gauge length specimen per applicable standard |
| Dimensions | Height: 50 – 300 mm; Flange: 30 – 100 mm; Thickness: 1.5 – 6.0 mm; Length: 6 – 12 m | Custom sizes available; tolerances per GB/T 6725 or EN 10162 |
| Surface Finish | Hot-dip galvanized / Painted / Black (mill finish) | Galvanized coating thickness typically 40 – 275 g/m² per ASTM A653 |
| Application | Steel structures, purlins, wall girts, framing systems, solar mounting brackets, warehouse construction | Widely used in prefabricated buildings and light steel frame systems |
| Certification | ISO 9001, SGS, BV, CE, Mill Test Certificate EN 10204 3.1 | Third-party inspection and testing reports available on request |
| Packaging | Bundled with steel strips, waterproof paper or plastic wrap, tagged for identification | Seaworthy export packaging; customized packing per buyer requirements |
| MOQ | 5 Metric Tons | Smaller trial orders negotiable; lead time varies by quantity |
Initial Labeling Issue Resolved Professionally
Ordered 6 MT of C200×65×2.5 lipped channels for a cable management project. When the shipment arrived in Sheffield, we noticed some bundles had incorrect grade labels—marked A36 instead of A572 Gr.50. Raised the issue with their support team and they responded within hours, cross-referencing heat numbers against the MTCs to confirm the material was indeed Gr.50 as ordered. They sent corrected documentation the next day and offered a small credit for the inconvenience. The actual product quality was fine—dimensions and coating were on point. Giving 3 stars mainly because labeling accuracy matters in our industry, but I acknowledge they handled the resolution well.
Ordered 6 MT of C200×65×2.5 lipped channels for a cable management project. When the shipment arrived in Sheffield, we noticed some bundles had incorrect grade labels—marked A36 instead of A572 Gr.50. Raised the issue with their support team and they responded within hours, cross-referencing heat numbers against the MTCs to confirm the material was indeed Gr.50 as ordered. They sent corrected documentation the next day and offered a small credit for the inconvenience. The actual product quality was fine—dimensions and coating were on point. Giving 3 stars mainly because labeling accuracy matters in our industry, but I acknowledge they handled the resolution well.
