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Basic Specifications
Product Name
Spiral Submerged Arc Weld Steel Pipe
Outside Diameter
219 mm - 4064 mm
Wall Thickness
6 mm - 25 mm
Steel Grade
API 5L (Grades B, X42 - X70)
Standard
ASTM A252, EN10219, GB/T9711
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Professional Engineering Solutions
Providing comprehensive full-chain pile foundation solutions, covering every stage from material sourcing and manufacturing to construction and maintenance. Services encompass welded pipe production, anti-corrosion treatments, steel fabrication, equipment supply, design, and technical support for marine, bridge, and infrastructure projects worldwide.
Core Product Matrix:
- Pile Foundation: Steel pipe piles, H piles, steel sheet piles
- Foundation & Drilling Tools: Casing, joints, helical screw piles, drilling augers
- Support Systems: Excavation steel shoring, combined wall systems, connectors
- Value-added Services: Galvanizing, anti-corrosion coating, engineering support
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Technical Specification
| Pipe Type |
Seamless |
ERW |
LSAW |
SSAW |
Roller Welded |
| OD (mm) |
10.3 - 914.4 |
21.3 – 660.4 |
355.6 – 1828.8 |
219.1 – 4064 |
355.6 – 7000 |
| WT (mm) |
1.0 - 120 |
1.5 - 22.2 |
8 - 50 |
5 - 30 |
8 - 230 |
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Quality Assurance & Logistics
Our in-house lab performs a comprehensive range of tests including Chemical Composition Analysis, Mechanical Property Testing, Radiographic Testing (RT), Ultrasonic Testing (UT), and Hydro Static Testing. All products are delivered through a multi-modal logistics network (Rail, Air, Ocean) ensuring safety first with anti-rust and damage-prevention packaging.
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Fabrication & Application
Specializing in steel structures for construction, oil & gas, marine, and bridge girders. Welding standards comply with AWS D1.1, EN 1090, ISO 3834, and ASME IX. Trusted for essential infrastructure like subway tunnels, ports, terminals, and water plants.
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Frequently Asked Questions
What types of pipes do you supply?
We supply seamless and welded (ERW/LSAW/SSAW/Roller Welded) carbon and alloy steel pipes for oil, gas, construction, and infrastructure projects.
Are your products certified to international standards?
Yes, our products comply with API 5L, 5CT, ASTM, EN, and ISO 9001. All shipments include Mill Test Certificates.
What is the typical lead time for an order?
Standard orders typically have a lead time of 15-45 days, depending on the specific quantity and requirements.
How are the pipes protected during export shipping?
Pipes are bundled with steel straps, waterproof wrapping, and end protectors to prevent corrosion and physical damage.
Do you support third-party inspections?
Absolutely. Quality control includes raw material checks and finished product testing, with third-party inspections (SGS, TUV, ABS, BV) available upon request.