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| Property | Parameter | Description |
|---|---|---|
| Product Name | Special Shape Steel Pipe | Non-standard cross-section steel tubing |
| Material Grade | Q235B / Q345B / ASTM A500 / SS400 | Carbon steel and structural steel grades |
| Standard Compliance | ASTM A500, EN 10219, GB/T 6728, JIS G3466 | Meets major international standards |
| Manufacturing Process | Cold Formed / Hot Formed / Welded | ERW and seamless options available |
| Available Shapes | Oval, D-shape, Hexagonal, Triangular, Flat-sided, Irregular | Custom profiles per drawing |
| Carbon (C) | ≤0.26% | Carbon content for Q345B grade |
| Manganese (Mn) | ≤1.60% | Enhances strength and hardness |
| Silicon (Si) | ≤0.55% | Deoxidizer element |
| Phosphorus (P) | ≤0.035% | Controlled for improved ductility |
| Sulfur (S) | ≤0.035% | Low sulfur for better weldability |
| Tensile Strength | ≥470 MPa | Minimum tensile strength for Q345B |
| Yield Strength | ≥345 MPa | Minimum yield strength for Q345B |
| Elongation | ≥21% | Ductility in 50mm gauge length |
| Wall Thickness | 1.0mm - 30mm | Standard and custom thickness available |
| Length | 5.8m - 12m or custom | Cut-to-length service available |
| Surface Treatment | Black, Galvanized, Painted, Powder Coated | Multiple finish options per requirement |
| Application | Architecture, Machinery, Furniture, Automotive, Guardrails | Structural and decorative applications |
| Certification | EN 10204 3.1, ISO 9001, SGS | Quality certifications provided |
| Packaging | Bundled with steel strips, plastic caps on ends | Standard seaworthy export packaging |
| MOQ | 5 tons | Minimum order quantity per specification |
Acceptable Quality Hexagonal Tubes — Communication Delay Resolved
Ordered 4 tons of hexagonal steel pipes in Q345B, 25mm across flats, 3mm wall, for a mining equipment application in Alberta. Material properties and dimensional tolerances on the finished product were correct and the MTC was compliant. Main issue was a 5-day delay in receiving the feasibility confirmation after submitting our DWG files — response came in on day 7 rather than the quoted 48 hours. After raising this with the sales team, they escalated internally and provided a revised production schedule with daily updates. Final delivery was only 3 days past the original target. Product quality itself met spec. Communication process has apparently been improved since; we are cautiously planning a repeat order.
Ordered 4 tons of hexagonal steel pipes in Q345B, 25mm across flats, 3mm wall, for a mining equipment application in Alberta. Material properties and dimensional tolerances on the finished product were correct and the MTC was compliant. Main issue was a 5-day delay in receiving the feasibility confirmation after submitting our DWG files — response came in on day 7 rather than the quoted 48 hours. After raising this with the sales team, they escalated internally and provided a revised production schedule with daily updates. Final delivery was only 3 days past the original target. Product quality itself met spec. Communication process has apparently been improved since; we are cautiously planning a repeat order.
