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| Property | Parameter | Description |
|---|---|---|
| Product Name | 409 Stainless Steel Pipe | Ferritic stainless steel pipe for automotive and industrial applications |
| Material Grade | AISI 409 / EN 1.4512 / UNS S40900 | International grade equivalents |
| Standard Compliance | ASTM A268, ASTM A240, EN 10088-2 | Meets major international standards |
| Carbon (C) | ≤0.08% | Low carbon content for weldability |
| Chromium (Cr) | 10.5-11.75% | Provides basic corrosion resistance |
| Manganese (Mn) | ≤1.0% | Improves strength and hardenability |
| Silicon (Si) | ≤1.0% | Deoxidizer and strengthener |
| Titanium (Ti) | 6×(C+N) min - 0.75% max | Stabilizer to prevent intergranular corrosion |
| Tensile Strength | ≥380 MPa | Minimum tensile strength per ASTM A268 |
| Yield Strength | ≥205 MPa | Minimum yield strength |
| Elongation | ≥20% | Ductility in 50mm gauge length |
| OD Range | 6mm - 630mm | Available outer diameter options |
| Wall Thickness | 0.5mm - 25mm | Standard and custom thickness |
| Length | 6m - 12m or custom | Standard and custom lengths |
| Surface Finish | Annealed, Pickled, Polished | Multiple surface treatment options |
| Application | Automotive exhaust systems, heat exchangers, industrial equipment | Typical application industries |
| Heat Resistance | Up to 815°C | Maximum continuous service temperature |
| Certification | EN 10204 3.1, ISO 9001, ASTM | Quality certifications provided |
| Packaging | Bundled with steel strips, plastic caps, wooden crates | Standard export packaging |
| MOQ | 5 tons | Minimum order quantity |
Acceptable Quality with Documentation Issues Resolved
Decent product overall with some initial documentation challenges that were ultimately resolved. We ordered 4 tons of 409 welded pipe (60.3mm OD, 2.0mm wall thickness) for our industrial oven exhaust ductwork project operating at 650°C. The material quality met ASTM A268 specifications with proper chemical composition and mechanical properties verified by our third-party testing laboratory. However, the initial MTC 3.1 certificates shipped with the material contained heat number discrepancies that didn't match the pipe identification markings, causing our quality department to place the entire shipment on hold pending clarification. This created a 5-day delay in our fabrication schedule while we worked with their documentation team to obtain corrected certificates with proper traceability. To their credit, their quality manager responded within 24 hours of our notification, conducted internal investigation, and provided revised certificates within 3 business days along with root cause analysis showing a clerical error in their certificate generation system. They also implemented corrective action to prevent recurrence and offered expedited shipping at no charge on our next order as compensation for the inconvenience. The pipe itself performed well in our welding trials using ER409 filler metal, achieving good fusion and no cracking in heat-affected zones. Surface condition was acceptable mill finish with minor scale that cleaned easily with wire brushing. Dimensional accuracy was within ASTM A999 tolerances. I would suggest they implement additional quality checks on documentation before shipment to prevent similar issues. Overall acceptable supplier once the paperwork issues were corrected, and their responsive problem-solving approach demonstrated commitment to customer satisfaction. 3 stars reflects the initial documentation problem, but their professional handling of the situation and quality of the actual material warrants consideration for future orders with expectation of improved administrative processes.
Decent product overall with some initial documentation challenges that were ultimately resolved. We ordered 4 tons of 409 welded pipe (60.3mm OD, 2.0mm wall thickness) for our industrial oven exhaust ductwork project operating at 650°C. The material quality met ASTM A268 specifications with proper chemical composition and mechanical properties verified by our third-party testing laboratory. However, the initial MTC 3.1 certificates shipped with the material contained heat number discrepancies that didn't match the pipe identification markings, causing our quality department to place the entire shipment on hold pending clarification. This created a 5-day delay in our fabrication schedule while we worked with their documentation team to obtain corrected certificates with proper traceability. To their credit, their quality manager responded within 24 hours of our notification, conducted internal investigation, and provided revised certificates within 3 business days along with root cause analysis showing a clerical error in their certificate generation system. They also implemented corrective action to prevent recurrence and offered expedited shipping at no charge on our next order as compensation for the inconvenience. The pipe itself performed well in our welding trials using ER409 filler metal, achieving good fusion and no cracking in heat-affected zones. Surface condition was acceptable mill finish with minor scale that cleaned easily with wire brushing. Dimensional accuracy was within ASTM A999 tolerances. I would suggest they implement additional quality checks on documentation before shipment to prevent similar issues. Overall acceptable supplier once the paperwork issues were corrected, and their responsive problem-solving approach demonstrated commitment to customer satisfaction. 3 stars reflects the initial documentation problem, but their professional handling of the situation and quality of the actual material warrants consideration for future orders with expectation of improved administrative processes.
