| Property | Parameter | Description |
|---|---|---|
| Product Name | API 5L Welded Steel Pipe | Longitudinal or spiral welded carbon steel line pipe |
| Material Grade | API 5L Grade B / X42 / X52 / X60 / X65 / X70 | PSL1 and PSL2 product specification levels |
| Standard Compliance | API 5L (46th Edition), ISO 3183 | Meets international oil and gas pipeline standards |
| Manufacturing Process | ERW / LSAW / SSAW | Electric Resistance Welded, Longitudinal or Spiral Submerged Arc Welded |
| Carbon (C) | ≤0.26% (Grade B PSL1) | Carbon content controlled for weldability |
| Manganese (Mn) | ≤1.30% (Grade B PSL1) | Enhances strength and hardenability |
| Phosphorus (P) | ≤0.030% | Controlled for improved toughness |
| Sulfur (S) | ≤0.030% | Low sulfur for better weldability and ductility |
| Tensile Strength | ≥415 MPa (Grade B) | Minimum tensile strength per API 5L specification |
| Yield Strength | ≥245 MPa (Grade B) | Minimum yield strength per API 5L specification |
| Elongation | ≥22% | Minimum elongation in 50mm gauge length |
| OD Range | 21.3mm - 2540mm (1/2'' - 100'') | Available outer diameter range for welded pipe |
| Wall Thickness | 1.8mm - 33.3mm | Standard and custom wall thickness options |
| Length | 5.8m - 12.2m or custom | Single random, double random, or cut-to-length |
| Weld Seam Type | Straight seam / Spiral seam | ERW for small OD, LSAW/SSAW for large OD |
| End Finish | Plain end, Beveled end, Threaded & coupled | Per customer specification or API 5L requirements |
| Application | Oil & gas transmission, water pipeline, structural | Onshore and offshore pipeline transportation |
| Certification | API 5L Monogram, ISO 9001, EN 10204 3.1 | Third-party inspection available (SGS, BV, Lloyd's) |
| Packaging | Bundled with steel strips, plastic caps, varnished | Standard seaworthy export packaging |
| MOQ | 10 tons | Minimum order quantity for welded steel pipe |
Purchased 18 tons of L290/X42 PSL 1 ERW pipe, 10-inch OD, 5.56mm wall thickness for a refinery utility distribution upgrade. Chemical and mechanical test results were within API 5L limits and the 3.1 MTC was complete. However, delivery arrived on day 21 against the quoted 15-day lead time, which caused a 4-day delay to our installation crew mobilization. When we raised this with the sales contact, the explanation given was port congestion at origin, which is understandable but earlier communication would have helped us replan. Pipe dimensions and end finish were acceptable with no dimensional rejections on site. The issue was logistics coordination rather than product quality. Supplier has since confirmed improved shipment tracking notifications for future orders, so we may trial them again on a smaller requirement.


