Galvanized Pipe

Hot-Dipped Galvanized Round Pipe Production

Uncoiling → 2. Leveling → 3. End cutting → 4. End shearing welding → 5. Super coil accumulator → 6. Edge cutting → 7. Ultrasonic detection (steel strip) → 8. Forming (round shape) → 9. Electric induction welding → 10. Ultrasonic detection for weld seam → 11. Medium frequency heat treatment → 12. Air cooling → 13. Water cooling → 14. Sizing → 15. Flying cutting → 16. Flush-out → 17. Cropping → 18. Flattening & testing → 19. Straightening → 20. End facing and bevelling → 21. Hydrodynamic testing → 22. Ultrasonic detection for weld seam (second pass) → 23. Ultrasonic detection for pipe end → 24. Visual and dimensions inspection → 25. Weighting and measuring → 26. Hot-dip galvanizing (submersion in molten zinc) → 27. Bundling → 28. Shipping

Pre-Galvanized Round Tube Production

Pre-galvanizing (electroplating of steel strip) → 2. Uncoiling → 3. Leveling → 4. End cutting → 5. Edge cutting → 6. Forming (round shape) → 7. Electric induction welding → 8. Ultrasonic detection for weld seam → 9. Sizing → 10. Flying cutting → 11. Flush-out → 12. Visual and dimensions inspection → 13. Weighting and measuring → 14. Oiling (optional) → 15. Bundling → 16. Shipping

Hot-Dipped Galvanized Round Pipe

• Superior Corrosion Resistance: Thick zinc-iron alloy layer provides High salt resistance (salt spray resistance ≥1000h), ideal for coastal Middle East/Southeast Asia and humid African regions.
• Strong Coating Adhesion: Zinc layer bonds tightly with steel, no peeling during fabrication or handling—critical for long-term outdoor use.
• High Structural Strength: Hot-rolled base material and thick wall options (up to 17.5mm) support heavy loads for municipal engineering, warehouse structures, and irrigation systems.
• Long Service Life: 15-25 years in outdoor environments, reducing maintenance and replacement costs.
• Compliant Quality: Meets international/regional standards (SASO/SONCAP/SNI), qualifying as Compliant galvanized pipe for project approval.

Pre-Galvanized Round Tube

• Cost-Effective: Lower initial investment for budget-constrained or short-term projects (service life 3-8 years).
• Lightweight & Easy Handling: Thin walls and small diameter range simplify transportation and installation for indoor light-duty use.
• Fast Lead Time: Simplified manufacturing process enables quicker delivery (5-10 working days for standard orders).
• Basic Corrosion Protection: Suitable for dry indoor applications like warehouse shelving or temporary piping.

Our products adhere to global and regional standards to ensure compliance and reliability:

• International Standards: ASME B36.10, JIS3444, GB/T3091, BS 1387, BS1139, DIN2444
• Quality Management: ISO 9001
• Regional Compliance: SASO (Middle East), SONCAP (Africa), SNI (Indonesia), TIS (Thailand), ISIRI (Iran)
• All orders include material test reports (MTR) and certification documents for customs clearance.

Packaging

• Hot-Dipped Galvanized Round Pipe: Bundled with galvanized steel straps, wrapped in moisture-proof film, and placed on ISPM 15-certified wooden pallets. Additional anti-corrosion film for coastal deliveries.
• Pre-Galvanized Round Tube: Lightweight bundling with plastic sleeves to prevent coating scratches; labeled with "Handle with Care" warnings.
• All products feature clear English labeling with product type, specs, batch number, and handling instructions for smooth port clearance.

Shipping

• Lead Time: Hot-Dipped Galvanized Round Pipe (standard ≤50 tons): 7-15 working days; bulk >50 tons: 20-30 working days. Pre-Galvanized Round Tube (standard ≤30 tons): 5-10 working days; bulk >30 tons: 15-20 working days.
• Logistics Partners: Maersk, CMA CGM (global), Aramex (Middle East), SICEPAT (Southeast Asia), GIGL (Africa).
• Delivery Coverage: Port-to-port, door-to-door for major cities, and inland transport to remote project sites.

RFQ Question: Can your hot-dipped pipe withstand UAE’s coastal salt spray?

Answer: Yes, our hot-dipped galvanized round pipe has salt spray resistance ≥1000h and a zinc layer ≥450g/m². It’s SASO-certified, ideal for UAE’s coastal infrastructure, with a 15-year service life.

RFQ Question: Need pre-galvanized tube for Kenya’s indoor warehouse—what’s the MOQ?

Answer: The MOQ is 2 tons for standard sizes (DN15~DN100). It’s SONCAP-approved, lightweight for easy transport, and delivered in 7-10 working days.

RFQ Question: Is your galvanized pipe suitable for Thailand’s humid irrigation projects?

Answer: Our hot-dipped galvanized round pipe (DN20~DN80) resists tropical humidity. It’s TIS-compliant, with a smooth interior for water-saving irrigation, and comes with installation support.

RFQ Question: What’s the difference between hot-dipped and pre-galvanized for Iran’s temperature fluctuations?

Answer: Hot-dipped has a thick, adhesive zinc layer (15-25-year life) for outdoor use in Iran’s climate; pre-galvanized (3-8-year life) is for indoor/short-term projects. Both meet ISIRI standards.

RFQ Question: Do you supply hot-dipped pipe for Nigeria’s municipal water projects?

Answer: Yes, our hot-dipped galvanized pipe is SONCAP and ASTM-certified. It withstands Nigeria’s humidity, fits municipal water systems (DN50~DN150), and includes clearance support.

RFQ Question: Can pre-galvanized tube be used for Southeast Asia’s temporary construction?

Answer: Yes, pre-galvanized round tube (DN20~DN80) is cost-effective for short-term projects. It resists mild humidity, has a 5-8-day lead time, and meets regional safety standards.