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Welcome to Hemaokang Steel (Shandong) Co., Ltd., a professional manufacturer of steel products based in Liaocheng, Shandong, China. We are pleased to present our ASTM A53 ERW Hot Dipped Galvanized Steel Pipe, available in DN80 with a wall thickness of 4mm and a fixed length of 6m. This pipe features a Z275 galvanized coating, which provides dependable protection against corrosion and extends service life in demanding environments. Our goal is to deliver consistent, high-performance steel solutions for your project needs.
Product Specifications
| Standard | ASTM A53 |
| Material | Carbon steel per A53 specifications |
| Manufacturing Process | Electric Resistance Welding (ERW) |
| Nominal Size | DN80 (approx. 88.9 mm outside diameter) |
| Wall Thickness | 4 mm |
| Length | 6 m fixed |
| Coating | Hot-dipped galvanized, Z275 (nominal 275 g/m²) |
| End Finish | Plain end (threading, grooving or beveling optional) |
| Application | Water supply, construction, structural support, fencing |
| Packing | In bundles, with steel strips or protective end caps |
Key Features
- Reliable ERW manufacturing: The electric resistance welding process creates a strong longitudinal seam, providing consistent weld integrity and smooth pipe body. This production method supports high efficiency and dimensional consistency for large-volume demand.
- Effective Z275 galvanized protection: Hot-dipped galvanizing forms a thick, metallurgically bonded zinc layer. A Z275 coating weight means at least 275 grams of zinc per square meter, which offers sacrificial protection to the underlying steel and significantly slows corrosion in moist or marine environments.
- Close dimensional control: Outer diameter, wall thickness, and length are checked during production to ensure compliance with ASTM A53. The 4mm wall thickness provides additional strength and is suitable for pressurized and structural uses.
- Clean and smooth finish: The galvanized surface is free from heavy spangles, rough spots, and uncoated areas. A uniform finish facilitates field painting, wrapping, and installation.
- Good processing flexibility: The pipe can be cut, threaded, grooved, beveled, or welded to your project requirements. End finish options are available upon request.
- Fixed 6m length: The fixed length simplifies transport planning, reduces cutting loss, and speeds up installation for contractors.
Customer Benefits
- long-term durability in outdoor and wet conditions;
- lower maintenance and replacement costs over service life;
- high strength-to-weight ratio for structural applications;
- availability in batch volumes for large projects;
- flexible end preparations and packing according to order requirements.
Application Range
This ASTM A53 ERW galvanized pipe is widely used in water delivery systems, irrigation pipelines, greenhouse frames, fence posts, scaffolding, temporary drainage lines, and general building structures. Its corrosion-resistant coating makes it a practical option for environments that involve frequent rainfall, high humidity, or moderate chemical exposure. Additionally, the pipe can serve as a mechanical tube for conveying non-hazardous liquids and gases.
Quality Assurance
Hemaokang Steel operates an ISO9001 quality management system, controlling every stage from raw material inspection to packing and loading. For this product, we typically carry out dimension checks, wall thickness verification, galvanized coating mass assessment, and visual surface inspection. If required, hydrostatic testing and material test certificates can be provided for specific orders. You can rely on consistent product quality and traceable manufacturing records.
As an expanding supplier with an annual export value of US$50 million to US$100 million and a team of 51-100 experienced employees, Hemaokang Steel has established a strong presence across global markets including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions. Our factory is located in Liaocheng, Shandong, a major steel production hub in China, and we ship from the port of Qingdao, ensuring efficient logistics. We understand the importance of timely delivery and competitive pricing. Please contact us for more details, sample requests, or a tailored quotation.
Frequently Asked Questions
- 1. Is the pipe certified to ASTM A53? Yes, this pipe is manufactured in accordance with ASTM A53 specifications. Mill certificates and test reports are available upon request to confirm the material and performance details.
- 2. What does Z275 coating mean? Z275 refers to a hot-dipped galvanized coating mass of approximately 275 grams per square meter. This provides stronger corrosion resistance than lighter zinc coatings such as Z80 or Z120.
- 3. Can I get other sizes and lengths? Yes, we can customize outer diameter, wall thickness, and length to meet project needs. Standard fixed length is 6 m, but other lengths are available upon request.
- 4. Do you offer threading, grooving, or beveling? Yes, we provide various end finishes such as plain ends, threaded ends, grooved ends, and beveled ends. Please specify your requirement when placing an order.
- 5. What is the minimum order quantity? The minimum order quantity depends on the product specification and customization level. For this DN80 pipe, we can discuss a reasonable MOQ based on your delivery schedule. Contact our sales team for details.
- 6. How do you guarantee consistent quality? We operate under an ISO9001 quality system. Every batch is subjected to quality control checks before release, including dimensional measurement, wall thickness testing, and coating weight inspection. Independent third-party inspection is also possible.
- 7. What are the main applications of this galvanized pipe? Common applications include water supply pipelines, structural supports, handrails, fence posts, greenhouse frames, and scaffold systems. Its zinc coating provides effective protection in both rural and urban settings.
- 8. How is the pipe packed for export? Pipes are usually bundled with steel strips, with end caps placed on each pipe to protect threads or the zinc coating. For special orders, waterproof wrapping or wooden pallets can be arranged to ensure damage-free delivery.
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