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Help CenterGalvanized Steel Pipe 2 Inch Sch 40 Hot Dip Galvanized for Water Treatment System
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – Your trusted partner for high-quality steel pipes. Our 2 inch Sch 40 Hot Dip Galvanized Steel Pipe is engineered to deliver exceptional corrosion resistance and durability, specifically designed for water treatment systems. With annual export values exceeding US$50 million and a global presence across North America, Europe, Asia, and more, we combine advanced manufacturing processes with rigorous quality control to ensure every pipe meets the highest standards.
This pipe is manufactured from prime carbon steel and undergoes a complete hot-dip galvanization process, creating a robust zinc coating that protects against rust, chemicals, and extreme environments. Ideal for water supply, wastewater treatment, and industrial piping networks, it offers long service life with minimal maintenance. Backed by our ISO9001-certified operations, every batch is tested for thickness, tensile strength, and coating uniformity.
Key Features & Specifications
- Size: 2 inches (DN50) – nominal pipe size conforming to ANSI/ASME B36.10
- Schedule: 40 – wall thickness of 3.91 mm (0.154 in) for high pressure resistance
- Material: Carbon steel per ASTM A53 Grade B, ensuring weldability and strength
- Galvanizing: Hot-dip galvanized (HDG) per ASTM A123 – zinc coating thickness ≥ 85 μm, even on interior surfaces
- End Finish: Plain ends standard; beveled ends or threaded options available upon request
- Length: 6 meters (20 ft) standard; custom lengths up to 12 meters available
- Working Pressure: Up to 300 psi at 100°F (for water service) – consult engineering data for exact ratings
- Temperature Range: -29°C to 260°C (based on coating and application)
Technical Specifications (Typical Values)
| Parameter | Value |
| Outside Diameter | 60.3 mm (2.375 in) |
| Wall Thickness | 3.91 mm (0.154 in) |
| Weight per Meter | 5.44 kg/m (3.66 lb/ft) |
| Coating Weight (Zinc) | ≥ 600 g/m² (total both sides) |
| Tensile Strength | ≥ 415 MPa (60 ksi) |
| Yield Strength | ≥ 240 MPa (35 ksi) |
Why Choose Our Pipe for Water Treatment Systems?
- Superior Corrosion Resistance: The hot-dip galvanized layer acts as a sacrificial barrier, preventing rust even in humid or chemical-laden environments typical of water treatment plants.
- Long Service Life: Properly galvanized pipes can last 50+ years in many water applications, reducing replacement costs.
- Cost-Effective: Lower initial cost compared to stainless steel, with comparable longevity in non-extreme conditions.
- Easy Installation: Lightweight (5.44 kg/m) and can be threaded, welded, or connected with couplings – compatible with standard fittings.
- Basis for Safe Drinking Water: The zinc coating meets NSF/ANSI 61 standards (available upon request) for potable water contact.
- Environmental Benefits: Zinc is fully recyclable; pipe scrap can be recycled at end of life.
Trust & Assurance from Hemaokang Steel
As a newly established but well-capitalized manufacturer (annual export US$50-100 million), we have built a team of 51-100 professionals dedicated to quality control and customer satisfaction. Our ISO9001 certification ensures every production batch – from chemical analysis to hydrostatic testing – is traceable and compliant. We serve clients in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, and Domestic Market – a testament to our global reliability. Whether you need standard 6-meter pipes or custom lengths, our flexible production lines can meet your schedule. Contact us for a quote or technical datasheet – we are ready to support your next water treatment project.
Frequently Asked Questions
- 1. Is this pipe suitable for potable water?
- Yes, our hot-dip galvanized pipe can be certified for potable water contact per NSF/ANSI 61 when requested. Standard production meets general water transmission requirements; please confirm with our sales team for specific certification needs.
- 2. What is the standard length? Can I get custom lengths?
- Standard length is 6 meters (20 ft). Custom lengths from 4 to 12 meters are available upon request – please specify during ordering.
- 3. What is the difference between Sch 40 and Sch 80?
- Schedule 40 has a wall thickness of 3.91 mm for 2-inch pipe, while Schedule 80 is thicker (5.54 mm) for higher pressure applications. Our Sch 40 is ideal for typical water treatment systems operating under moderate pressure.
- 4. Can this pipe be welded?
- Yes, the base steel (ASTM A53 Grade B) is weldable. However, welding may damage the zinc coating near the joint – post-weld galvanizing or zinc-rich paint is recommended for corrosion protection.
- 5. Do you provide threaded ends or couplings?
- We offer plain ends as standard. Threaded ends and galvanized couplings are available as optional processed items – please advise your requirements.
- 6. What is the minimum order quantity (MOQ)?
- Our typical MOQ is 1 ton per size. For smaller quantities, please contact us – we may accommodate sample orders.
- 7. How is the pipe packaged for export?
- Pipes are bundled with steel straps, wrapped in waterproof paper or plastic, and loaded in sea-worthy containers. Custom packaging (e.g., wooden crates) can be arranged for added protection.
- 8. What is your delivery lead time?
- For standard sizes and quantities, lead time is approximately 15-25 days after order confirmation, depending on volume and production schedule.
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