Product Name: Welded Steel Pipe
Introduction
Welded Steel Pipe is produced by rolling plate or strip into a cylindrical shape and fusing the seam via electric resistance welding (ERW), submerged-arc welding (SAW), or high-frequency induction welding (HFIW). Offering precise dimensional control, cost-effective production, and versatile alloy options, welded pipes serve as a reliable solution for water, gas, structural, and mechanical conveyance systems.
Key Specifications
| Specification | Details |
|---|---|
| Standards | ASTM A53 / A134 ERW, API 5L PSL1–PSL2, EN 10217‑1 |
| Material Grades | Carbon steel (ASTM A53 Gr. B, API 5L Grade B), Low‑alloy (A335 P1–P91) |
| Outer Diameter (OD) | 21.3 – 1,219 mm |
| Wall Thickness | 1.5 – 20 mm |
| Length | 6–12 m (custom up to 18 m) |
| Tensile Strength | 350–550 MPa |
| Yield Strength | ≥ 245 MPa |
| Elongation (min) | ≥ 20 % |
| Straightness Tolerance | ≤ 0.5% of length |
| Surface Finish | Black lacquer, galvanized, painted, or anti‑rust oiled |
Custom diameters, thicknesses, and grades available upon request.
Features & Advantages
Cost‑Effective Production: Continuous welding processes maximize yield from raw strip or coil.
Tight Tolerances: Precision forming and welding deliver consistent OD, wall thickness, and straightness.
Versatile End Finishes: Available beveled, threaded, grooved, or plain ends to suit various jointing methods.
Good Weld Quality: ERW and SAW options ensure high seam strength and low defect rates.
Wide Material Range: From standard carbon steels for general service to alloy grades for high‑temperature and high‑pressure applications.
Applications
Oil & Gas Transmission: On‑shore pipelines, gathering lines, and risers (API 5L).
Water & Sewage: Municipal water mains, irrigation, and drainage systems.
Structural Uses: Scaffolding, handrails, Fencing posts, and steel structures.
Mechanical Systems: Hydraulic cylinders, boiler tubes, and conveyor rollers.
Fire Protection: Sprinkler systems and fire‑water mains.
Packaging & Delivery
Bundling: Pipes bundled in uniform lengths, banded with steel straps, and secured with end caps.
Crating/Skidding: Loaded on treated wooden skids or steel cradles, with protective chocks.
Protective Coating: Optional anti‑rust oil or coating; galvanized finish for extended outdoor exposure.
Lead Time: Typically 15–25 days after order confirmation; expedited schedules (10–15 days) available.
Why Choose Our Welded Pipes?
Advanced Welding Lines: Fully automated ERW and SAW mills ensure uniform seam quality and minimal HAZ.
Comprehensive Testing: 100 % ultrasonic, eddy‑current, and hydrostatic testing per ASTM/API/EN standards.
Custom Fabrication: In‑house end preparation (beveling, threading, grooving), bending, and heat‑treat services.
Technical Support: Engineering team assists with pipe‑stress analysis, joint design, and installation best practices within 12 hours.
Contact Us
For reliable Welded Steel Pipes tailored to your conveying, structural, or mechanical requirements, please contact our sales department. We're committed to delivering high‑quality piping solutions and responsive service for your next project.
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