Products Description
hot-dip galvanized steel pipes are specifically manufactured for water supply and plumbing applications. Produced in compliance with international ASTM A53 standards, these pipes undergo a rigorous hot-dip galvanizing process that creates a robust, metallurgically bonded zinc coating. This provides superior corrosion resistance, ensuring a long service life for both above-ground and underground water systems, protecting water quality and system integrity
Products Specification
| Feature | Specification |
|---|---|
| Product Name | Hot-Dip Galvanized Steel Water Pipe |
| Standard | ASTM A53, ASME B36.10, BS 1387, EN 10255 |
| Type | ERW (Electric Resistance Welded) |
| Grade | Q195, Q235, GR.B (Equivalent to ASTM A53) |
| Galvanization | Hot-Dip Galvanized (HDG) |
Products Advantages
Superior Corrosion Resistance: The hot-dip galvanizing process offers complete coverage, inside and out, with a thick zinc layer that acts as a sacrificial anode, preventing rust and extending system life decades longer than black steel pipe.
Safe for Potable Water: Our pipes are produced for use in drinking water systems. We can provide NSF/ANSI 61 certification upon request to comply with international potable water standards.
High Strength & Durability: The steel base material provides high tensile strength and impact resistance, making it suitable for high-pressure applications and resistant to physical damage during handling and installation.
Long Service Life & Low Maintenance: The exceptional durability of the zinc coating drastically reduces maintenance, repair, and replacement costs, offering a highly economical long-term solution.
Easy Installation: Standardized dimensions ensure compatibility with all standard galvanized fittings, valves, and fixtures. Available threaded (T&C) for easy screw-on assembly.
Products Applications
Potable Cold and Hot Water Supply Lines in residential, commercial, and industrial buildings
Fire Protection and Sprinkler Systems
Industrial Plumbing for process water and wastewater lines
Agricultural Irrigation Systems
Scaffolding and Structural Supports (where corrosion resistance is needed)
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Q: Are these pipes suitable for drinking water?
A: Yes, they are commonly used for potable water. For confirmed compliance, we can provide NSF/ANSI 61 certification upon request (may involve additional cost and testing lead time).
Q: What is the difference between Schedule 40 and Schedule 80?
A: Schedule 80 has a thicker wall than Schedule 40 for the same nominal pipe size (NPS), meaning it can handle higher internal pressure. Sch 40 is standard for general water supply, while Sch 80 is used for higher-pressure applications.
Q: Can you provide pipes with threaded ends?
A: Absolutely. We commonly supply pipes with T&C (Threaded and Coupled) ends, threaded to API 5B or BS 21 standards. Couples are included.
Q: What is the zinc coating weight?
A: The zinc coating meets the ASTM A53 requirement of a minimum average of 610 grams per square meter (g/m²), which is typically around 85μm thick.
Q: What is the MOQ?
A: Our standard MOQ is one 20-foot container. However, we are flexible and can discuss smaller trial orders for new customers.
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