Products Description
The Seamless Steel Pipe for Fluid Transportation is manufactured through hot rolling or cold drawing without any welded seam, providing a uniform body structure with excellent pressure resistance, tensile strength and tight dimensional tolerances. It is widely used to safely and efficiently transport water, oil, gas and other fluids in pipeline systems. Produced in accordance with international standards and available in a full range of sizes, wall
thicknesses and steel grades, our seamless pipes offer reliable long-term performance for engineering, construction, energy and industrial projects. We are a direct factory supplier with competitive pricing, flexible customization and fast worldwide delivery.
Key Features & Benefits
| # | Feature (English) | Benefit to Buyer |
| 1 | Seamless construction (no welded joint) | Higher pressure resistance, no weld defects, longer service life |
| 2 | Uniform body structure & precise dimensions | Easier installation, stable performance under high pressure |
| 3 | Full size & grade range | One-stop supply for different project needs |
| 4 | Multiple surface finishes | Corrosion protection matched to your environment |
| 5 | International standards compliance | Qualified for project tenders and engineering specs |
| 6 | Custom lengths & ends | Reduced on-site welding, lower total cost |
| 7 | Third-party inspection available | Quality guaranteed, import documents supported |
| 8 | Factory-direct supply | Competitive price, stable stock, fast lead time |
Technical Specifications
| Specification | Value / Options |
| Product Name | Seamless Steel Pipe for Fluid Transportation |
| Standard | GB/T 8163 / ASTM A106 / ASTM A53 / API 5L / DIN 2448 / EN 10219 |
| Steel Grade | 20# / A106 Gr.B/ A53 Gr.B/ API 5L Gr.B/ Q345B / ST37 |
| Manufacturing Process | Hot Rolled / Cold Drawn / Cold Rolled |
| Outside Diameter (OD) | 21.3–711 mm |
| Wall Thickness (WT) | 2.0–60 mm |
| Length | Standard 5.8 / 6 / 12 m or Custom |
| Pipe Ends | Plain Ends / Beveled Ends / Threaded / Grooved |
| Surface Finish | Black Painted / Oiled / Varnish / Galvanized / 3PE / 3PP Anti-corrosion |
| Packing | Bundles with steel strips, waterproof wrapping, wooden cases for sea transport |
| Tolerance | OD ± [0.5]%, WT ± [10]% |
| Certification | ISO 9001 / API 5L / CE |
| Inspection | MTC / Third-party: SGS / BV / TUV |
Applications
| Application (English) | Scenario |
| Water Supply & Drainage | Municipal water transmission, irrigation, fire-fighting pipelines |
| Oil & Gas Transmission | Crude oil, natural gas and refined product line pipes |
| Chemical & Petrochemical | Corrosion-resistant process and conveying pipelines |
| Power Generation | Boiler tubes, heat exchanger tubes, steam lines |
| Shipbuilding | Marine piping and fluid systems |
| Mechanical Engineering | Hydraulic, pneumatic and general fluid systems |
| Construction & Structural | Support structures, scaffolding, underground pipe systems |
Why Choose Us
| 1 | Direct factory – eliminate middleman cost, factory price directly to you |
| 2 | Over 30 years of seamless pipe manufacturing experience |
| 3 | Full traceability – mill test certificates provided with every order |
| 4 | Strict quality control from raw material to finished product |
| 5 | Professional export team – packing, documents and shipping handled for you |
| 6 | Flexible customization – size, grade, surface and length per your specification |
| 7 | Fast response and on-time delivery worldwide |
Packaging & Shipping
| Item | Content |
| Packaging | Steel-strap bundles → waterproof wrapping → [wooden / steel] frames for sea freight |
| Loading | 20ft / 40ft container or bulk cargo, loading photos provided |
| Documents | Commercial invoice, packing list, Bill of Lading, MTC, origin certificate |
| Delivery | FOB / CIF / CFR |
| Lead Time | 7–30 days after deposit |
FAQ
Q: What is a seamless pipe for fluid transportation?
A: A steel pipe produced without a welded seam, offering high pressure resistance and uniform strength for transporting water, oil, gas and other fluids.
Q: What standards can you supply?
A: We supply [GB/T 8163, ASTM A106, ASTM A53, API 5L] – please confirm the standard you need.
Q: Can you customize size and length?
A: Yes, OD, wall thickness and length can be customized to your project specification.
Q: Do you provide quality certificates?
A: Yes, a Mill Test Certificate is provided with each order; third-party inspection is available on request.
Q: What is your minimum order quantity (MOQ)?
A: Our MOQ is 10 tons – small trial orders are welcome.
Q: What is your delivery time?
A: Lead time is normally 7–30 days after confirmation, depending on size and quantity.
Q: How do you ensure the pipe is suitable for our project?
A: Send us your required standard, grade, size and working pressure; our engineers will confirm the best match.
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