Galvanized Steel Pipe ASTM A53 Schedule 40 Hot Dipped 2 Inch 60.3mm OD 3.91mm Wall
Product Spotlights
Hemaokang Steel (Shandong) Co., Ltd. is proud to offer our high-quality Galvanized Steel Pipe ASTM A53 Schedule 40 Hot Dipped 2 Inch (60.3mm OD x 3.91mm Wall). As a reliable manufacturer and exporter based in Liaocheng, Shandong, China, we have been serving global clients since 2025, with annual export value reaching US$50 million to US$100 million. Our pipes are produced under strict quality control and ISO9001 certified management, ensuring consistent performance and durability for demanding applications. Whether you need structural supports or pressure piping systems, this product delivers excellent corrosion resistance and mechanical strength.
The 2-inch galvanized steel pipe is made from premium carbon steel and undergoes a hot-dipped galvanizing process that creates a uniform zinc coating, protecting against rust, oxidation, and harsh environmental conditions. Compliant with ASTM A53 Grade B, it is suitable for both pressure and structural applications, including water lines, gas pipelines, oil transportation, fencing, scaffolding, and construction frameworks. The Schedule 40 wall thickness (3.91mm) provides an optimal balance of strength and weight, making it easy to handle and install.
Key Features & Technical Specifications
- Material: High-quality carbon steel (Q235, Q345, or equivalent), ensuring excellent weldability and formability.
- Galvanizing Process: Hot-dipped galvanizing (HDG) at 450°C, resulting in a thick, adherent zinc coating (typically 50-85 μm per ASTM A123).
- Standard Compliance: Fully meets ASTM A53 (Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless).
- Dimensions: Outer diameter 60.3mm (2.0 inch nominal), wall thickness 3.91mm (0.154 inch), schedule 40.
- Length: Standard 6 meters (20 feet), with customization available (e.g., 5.8m, 12m, or random lengths).
- End Finish: Plain end (beveled for welding) or threaded with coupling, as per your request.
- Pressure Rating: Suitable for up to 2,000 psi (depending on temperature and application).
- Surface: Smooth, uniform zinc coating with no spangles or uneven spots, ready for painting or direct use.
| Parameter | Value | Notes |
| Nominal Pipe Size | 2 inch | NPS 2 |
| Outer Diameter | 60.3 mm | Tolerance ±0.5% |
| Wall Thickness | 3.91 mm | Schedule 40 |
| Weight per Meter | 5.44 kg/m (approx.) | Plain end |
| Zinc Coating Weight | 500 g/m² (average) | Per ASTM A123 |
| Tensile Strength | ≥ 415 MPa | Grade B requirement |
| Yield Strength | ≥ 240 MPa | Grade B requirement |
Advantages of Hot-Dipped Galvanized Coating: Unlike pre-galvanized or electro-galvanized pipes, the hot-dipped process creates a metallurgical bond between the zinc and steel, offering superior protection against corrosion, abrasion, and external damage. This makes our pipe ideal for outdoor installations, underground piping, and projects in humid or coastal environments. The uniform coating also ensures long service life (often 20-50 years depending on conditions), reducing maintenance costs for your clients.
Applications: Our 2-inch Schedule 40 galvanized steel pipe is widely used in oil and gas transmission, water supply and drainage, fire sprinkler systems, structural columns, handrails, greenhouses, and temporary scaffolding. It is compatible with standard fittings (elbows, tees, couplings) and can be easily threaded, welded, or grooved. For pressure applications, additional testing (hydrostatic, NDT) is available upon request.
Frequently Asked Questions (FAQ)
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Q: What is the maximum working pressure for this pipe?
A: For ASTM A53 Grade B Schedule 40 pipe, the maximum allowable working pressure at 100°F (38°C) is approximately 1,800 psi per ASME B31.1. However, actual pressure rating depends on temperature, service conditions, and end connections. Please consult our engineering team for specific requirements. -
Q: Can you provide custom lengths, for example 5.5m or 11.8m?
A: Yes, we offer customized lengths from 1m to 12m. Standard is 6m, but we can cut to your specifications. Please indicate your required length when placing an order. -
Q: Is the pipe threaded on both ends or plain end?
A: Both options are available. Plain end (beveled for welding) is standard. Threaded ends with coupling (NPT or BSP) can be supplied at your request. Additional charges may apply for threading. -
Q: What is the typical zinc coating thickness?
A: Our hot-dipped galvanized pipe meets ASTM A123, with an average coating thickness of 85 μm (3.5 mils) and minimum local thickness of 70 μm. The coating weight is around 500 g/m². We can provide a higher coating weight (up to 600 g/m²) for extra corrosion protection. -
Q: How do you ensure the quality of the pipe?
A: Our factory is ISO9001 certified. Each batch undergoes strict inspection: chemical composition analysis, tensile and yield tests, flattening/crushing tests, hydrostatic testing (2,500 psi), and visual inspection of the galvanized coating. We also provide mill test certificates (MTC) with every shipment. -
Q: What is the minimum order quantity (MOQ)?
A: For stock sizes (2-inch Schedule 40), our MOQ is 5 tons. For custom lengths or special coatings, MOQ may be 10 tons. However, we can negotiate smaller quantities for trial orders. Contact us for flexible terms. -
Q: How long does delivery take?
A: For standard sizes, delivery is usually 15-20 days after order confirmation. For larger quantities (over 100 tons), lead time may be 25-30 days. We ship via FOB, CIF, or CFR to major ports worldwide. We have strong logistics partnerships to ensure timely delivery. -
Q: Can you provide samples before bulk order?
A: Yes, we offer free samples (courier cost paid by buyer) for quality evaluation. Sample length is typically 30cm. Please contact our sales team to arrange.
Trust Hemaokang Steel – Your Reliable Partner
With an annual export value of US$50 million to US$100 million and a team of 51-100 experienced professionals, Hemaokang Steel (Shandong) Co., Ltd. has built a strong reputation in the global steel market. Our ISO9001 certification guarantees consistent quality, and our main markets span North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We are committed to providing competitive pricing, reliable supply, and responsive customer service. Choose our Galvanized Steel Pipe ASTM A53 Schedule 40 Hot Dipped 2 Inch for your next project – contact us today for a quote or technical consultation!
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