English 
简体中文 
CN
| Property | Parameter | Description |
|---|---|---|
| Product Name | 304 Stainless Steel Pipe | Austenitic chromium-nickel stainless steel pipe |
| Material Grade | 304 / AISI 304 / EN 1.4301 / UNS S30400 | International grade equivalents |
| Standard Compliance | ASTM A312, ASTM A269, EN 10217-7, JIS G3459 | Meets major international standards |
| Carbon (C) | ≤0.08% | Carbon content for strength and weldability |
| Chromium (Cr) | 18.0-20.0% | Provides corrosion resistance |
| Nickel (Ni) | 8.0-10.5% | Enhances ductility and corrosion resistance |
| Manganese (Mn) | ≤2.0% | Improves strength and workability |
| Silicon (Si) | ≤1.0% | Deoxidizer and strengthener |
| Phosphorus (P) | ≤0.045% | Controlled for ductility |
| Sulfur (S) | ≤0.030% | Low sulfur for improved weldability |
| Tensile Strength | ≥515 MPa | Minimum tensile strength per ASTM A312 |
| Yield Strength | ≥205 MPa | Minimum yield strength |
| Elongation | ≥35% | Ductility in 50mm gauge length |
| Hardness | ≤201 HBW / ≤92 HRB | Maximum hardness values |
| OD Range | 6mm - 630mm | Available outer diameter options |
| Wall Thickness | 0.5mm - 50mm | Standard and custom thickness |
| Length | 6m - 12m or custom | Standard and custom lengths available |
| Surface Finish | Annealed & Pickled, Bright Annealed, Polished | Multiple surface treatment options |
| Application | Food processing, chemical, pharmaceutical, architecture | Typical application industries |
| Temperature Range | -196°C to 925°C | Service temperature range |
| Corrosion Resistance | Excellent in mild environments | Good resistance to atmospheric and food acids |
| Weldability | Excellent | No post-weld heat treatment required |
| Certification | EN 10204 3.1, ISO 9001, PED, NACE MR0175 | Quality certifications provided |
| Packaging | Bundled with steel strips, plastic caps, wooden case | Standard export packaging |
| MOQ | 1 ton | Minimum order quantity |
Acceptable Quality with Minor Issues Resolved
Decent product with some initial concerns that were addressed. We ordered 5 tons of 304 welded pipe (3-inch Schedule 10S) for our municipal water treatment plant reverse osmosis system. Upon delivery inspection, we found that 3 pieces had weld discoloration indicating potential chromium depletion from improper heat input during fabrication. We documented this with photographs and contacted their quality team immediately. Within 48 hours, they arranged independent third-party testing through SGS which confirmed the welds met ASTM A312 intergranular corrosion requirements per Practice E testing. They also provided a 12% price reduction on the affected pieces as goodwill compensation. The material has been in service for 3 months handling chlorinated water at 6 bar pressure with no performance issues. I would suggest they implement more rigorous weld quality inspection before shipment to prevent similar concerns. Overall acceptable quality once the technical verification was completed, and their responsive problem-solving approach was professional.
Decent product with some initial concerns that were addressed. We ordered 5 tons of 304 welded pipe (3-inch Schedule 10S) for our municipal water treatment plant reverse osmosis system. Upon delivery inspection, we found that 3 pieces had weld discoloration indicating potential chromium depletion from improper heat input during fabrication. We documented this with photographs and contacted their quality team immediately. Within 48 hours, they arranged independent third-party testing through SGS which confirmed the welds met ASTM A312 intergranular corrosion requirements per Practice E testing. They also provided a 12% price reduction on the affected pieces as goodwill compensation. The material has been in service for 3 months handling chlorinated water at 6 bar pressure with no performance issues. I would suggest they implement more rigorous weld quality inspection before shipment to prevent similar concerns. Overall acceptable quality once the technical verification was completed, and their responsive problem-solving approach was professional.
