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Help CenterASTM A53 Galvanized Steel Pipe Sch40 Hot Dipped Q235B DN15-DN200 1/2-8 Inch 6m Threaded
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As a professional manufacturer from Hemaokang Steel (Shandong) Co., Ltd., we are proud to present our ASTM A53 Galvanized Steel Pipe Sch40 Hot Dipped Q235B – a premium solution for demanding industrial and construction applications. With annual export value exceeding US$50 million and ISO9001 certification, our pipes are trusted by clients across North America, South America, Europe, and beyond. This product combines the strength of Q235B steel with the durability of hot-dipped galvanizing, ensuring long service life even in harsh environments.
The ASTM A53 Sch40 galvanized pipe is designed to meet the rigorous requirements of pressure and mechanical applications. Manufactured in strict compliance with ASTM A53 standard, it offers excellent weldability, formability, and corrosion resistance. The hot-dipped galvanized coating provides a thick, uniform layer of zinc protection, preventing rust and extending the pipe's lifespan significantly. Available in sizes from DN15 to DN200 (1/2 inch to 8 inch), with a standard length of 6 meters, and threaded ends for easy assembly, this pipe is an ideal choice for water supply, gas lines, structural supports, and fencing.
Key Features & Technical Specifications
- Material: High-quality Q235B steel (equivalent to ASTM A53 Grade B) ensures reliable mechanical properties.
- Standard: Fully compliant with ASTM A53 – the benchmark for steel pipe quality in the US and global markets.
- Wall Thickness: Schedule 40 (Sch40) provides a balanced combination of strength and weight for medium-pressure applications.
- Surface Treatment: Hot-dipped galvanized (HDG) with zinc coating weight according to ASTM A153 – offers superior corrosion resistance.
- End Type: Threaded both ends as per NPT standard, allowing quick and secure connection without welding.
- Length: Standard 6 meters (20 feet), with custom lengths available upon request.
- Size Range: DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200 (1/2 inch to 8 inch nominal diameter).
| Size (DN) | Size (Inch) | Outside Diameter (mm) | Wall Thickness (mm) | Weight per Meter (kg) |
|---|---|---|---|---|
| DN15 | 1/2" | 21.3 | 2.77 | 1.27 |
| DN20 | 3/4" | 26.7 | 2.87 | 1.69 |
| DN25 | 1" | 33.4 | 3.38 | 2.50 |
| DN32 | 1-1/4" | 42.2 | 3.56 | 3.39 |
| DN40 | 1-1/2" | 48.3 | 3.68 | 4.05 |
| DN50 | 2" | 60.3 | 3.91 | 5.44 |
| DN65 | 2-1/2" | 73.0 | 5.16 | 8.63 |
| DN80 | 3" | 88.9 | 5.49 | 11.29 |
| DN100 | 4" | 114.3 | 6.02 | 16.07 |
| DN125 | 5" | 141.3 | 6.55 | 21.77 |
| DN150 | 6" | 168.3 | 7.11 | 28.26 |
| DN200 | 8" | 219.1 | 8.18 | 42.55 |
Benefits for Your Business: By choosing our ASTM A53 galvanized steel pipe, you gain a competitive edge: reduced maintenance costs due to excellent corrosion resistance, faster installation with pre-threaded ends, and compliance with international standards. The Sch40 wall thickness ensures adequate strength for most industrial piping systems, while the hot-dipped galvanizing meets the highest corrosion protection requirements. Whether you are building a water supply network, a scaffolding structure, or a fence line, this pipe delivers consistent performance.
Quality Assurance & Shipping
At Hemaokang Steel, we implement strict quality control from raw material sourcing to final inspection. Our ISO9001-certified production process ensures that every pipe meets the ASTM A53 specification. We offer flexible packaging options (bundled, in crates, or with plastic caps) to protect threads and galvanized surface during transit. Shipping from Qingdao port, we have extensive experience exporting to global markets, ensuring timely delivery. Our team of 51-100 skilled employees works diligently to fulfill orders from US$50 million to US$100 million annual export value.
We welcome OEM/ODM inquiries and can customize pipe length, threading type (NPT or BSPT), and packaging according to your project requirements. With our strong supply chain and competitive pricing, Hemaokang Steel is your reliable partner for steel pipe solutions. Contact us today for a quote or sample request.
Frequently Asked Questions (FAQ)
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Q: What is the difference between ASTM A53 and A106?
A: ASTM A53 is primarily for welded and seamless steel pipe used in pressure and mechanical applications, while A106 is for high-temperature service. A53 is more common for galvanized and threaded pipe. -
Q: Can the pipe be used for drinking water supply?
A: Yes, the hot-dipped galvanized coating provides a protective layer that is suitable for potable water systems, but we recommend checking local regulations and applying food-grade coatings if required. -
Q: Are the threads NPT or BSPT?
A: Our standard threading is NPT (National Pipe Thread) as per ASTM A53. BSPT (British Standard Pipe Thread) is available upon request as a customization. -
Q: What is the minimum order quantity (MOQ)?
A: For common sizes like DN15-DN100, MOQ is typically 10 tons. For larger sizes, we can discuss based on your needs. -
Q: How long does the galvanized coating last?
A: The lifespan depends on the environment. In typical indoor or rural environments, it can last 20-50 years. In highly corrosive industrial or coastal areas, it may be less; we can recommend additional protective measures. -
Q: Do you provide test certificates?
A: Yes, we provide Mill Test Certificates (MTC) per EN 10204 Type 3.1, including chemical composition and mechanical properties. -
Q: Can the pipe be supplied with a protective cap on threads?
A: Yes, we offer plastic caps on both ends to protect threads during transportation and storage.
Backed by ISO9001 certification and a decade of export experience, Hemaokang Steel (Shandong) Co., Ltd. is dedicated to delivering high-quality ASTM A53 Sch40 galvanized steel pipe that meets your exact specifications. With annual export value reaching US$50-100 million and a global client base, we have the capacity and reliability to support your projects. Request a quote now and experience the Hemaokang difference!
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