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Help CenterA53 Gr.B Galvanized Carbon Steel Pipe SCH40 Hot Rolled Round Tube 1/2"-12" OD For Construction
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. — a specialized supplier of high-performance steel products located in Liaocheng, Shandong, China. We take pride in offering this A53 Gr.B Galvanized Carbon Steel Pipe SCH40 Hot Rolled Round Tube, which is designed to meet the rigorous demands of modern construction and industrial piping applications. With our company's strong export track record of US$50-100 million annually and a professional team of 51-100 employees, we guarantee reliable supply, consistent quality, and responsive service for every order. This pipe combines ASTM A53 Grade B strength with hot-dip galvanized protection, delivering extended service life even in harsh environments.
This product is a top choice for engineers, contractors, and project managers who need a dependable structural steel tube that resists corrosion and handles high-pressure conditions. The SCH40 wall thickness provides a strong balance between flow efficiency and durability, while the 1/2" to 12" outer diameter range covers a wide variety of project requirements. Whether used in building frames, scaffolding, water lines, or mechanical equipment, this galvanized round tube delivers performance you can count on.
Key Features
- ASTM A53 Grade B compliance — ensures consistent mechanical properties, yield strength, and weldability, making it suitable for both pressure and structural uses.
- Hot-dip galvanized coating — provides excellent corrosion resistance, ideal for outdoor and high-humidity environments.
- SCH40 wall thickness — a standard schedule widely used in piping systems, offering good pressure retention capabilities.
- Hot rolled manufacturing — produces a smooth and uniform surface, ensuring reliable performance in fabrication and installation.
- Wide size range — outside diameters from 1/2" to 12" give you flexibility to choose the exact specification for your project.
- Round tube shape — provides high structural strength and is easy to join, bend, and weld as needed.
- Customizable length — available in standard lengths or cut to your specific requirements upon request.
Technical Specifications
| Specification | Value |
|---|---|
| Standard | ASTM A53 Grade B |
| Outer Diameter | 1/2" - 12" (DN15 - DN300) |
| Wall Thickness | SCH40 (actual mm varies by OD) |
| Manufacturing Process | Hot rolled |
| Surface Treatment | Hot-dip galvanized (zinc coated) |
| Length | 6 meters / 12 meters / custom |
| End Finish | Plain end / beveled end (optional) |
| Testing & Certification | ISO9001 quality management system |
Performance Advantages
- Excellent corrosion resistance — the zinc layer protects the steel pipe from rust and oxidation, reducing maintenance costs over time.
- High strength and toughness — ASTM A53 Gr.B offers a minimum yield strength of 35,000 psi, ensuring reliable performance under structural stress.
- Superior weldability — the steel composition supports clean and strong welding, essential for efficient onsite fabrication.
- Uniform wall thickness — SCH40 ensures consistent pressure handling and facilitates accurate threading or grooving when needed.
- Aesthetic and easy-to-ship — the galvanized finish provides a clean, professional appearance and allows simple handling during transport.
Applications
- Construction scaffolding and structural frames
- Water supply and drainage piping systems
- Oil and gas low-pressure fluid transmission
- Mechanical and engineering equipment fabrication
- Fencing, railing, and support columns
- Greenhouse and agricultural structure supports
Quality and Service
At Hemaokang Steel, we operate with a customer-first mindset and a strict quality management framework. Our facility in Liaocheng, Shandong, leverages advanced production lines and experienced technicians to ensure every pipe meets or exceeds expectations. We have established a solid logistics network through the Port of Qingdao, enabling efficient delivery to markets across North America, South America, Europe, Africa, Southeast Asia, Oceania, and beyond. Our annual export value of US$50-100 million reflects the trust our global partners place in us.
We understand that today's projects demand reliability, compliance, and value. Therefore, we offer flexible customization for lengths, marking, and packaging to match your specific contract terms. Our ISO9001-certified management system provides structured control from raw material selection to final inspection, giving you peace of mind on every shipment.
If you are looking for a durable, competitively priced galvanized steel pipe that meets EN/ASME-type applications and performs consistently in the field, this A53 Gr.B SCH40 round tube is the right solution. Contact us today for samples, quotations, or technical support — we are ready to supply your project with the strength it demands.
Frequently Asked Questions
-
Q: Can this pipe be used for high-temperature applications?
A: ASTM A53 Gr.B is generally used in low to moderate temperature environments, such as structural and low-pressure fluid service. For high-temperature applications, please consult our technical team for material recommendations. -
Q: What lengths are available?
A: Standard lengths are 6m and 12m, but we can cut to custom lengths based on your project drawings or installation needs. Custom cutting is available upon request. -
Q: Is the galvanized coating uniform inside and outside?
A: The hot-dip galvanizing process typically coats both the interior and exterior surfaces of the pipe, providing full protection against corrosion. However, for very small diameters, internal coating coverage may vary; our team can confirm specifics for your required size. -
Q: Do you provide chemical and mechanical test certificates?
A: Yes, mill test certificates can be supplied with each batch. Our quality system ensures traceability of the materials used. -
Q: Can the pipe be welded without special treatment?
A: The carbon steel composition of A53 Gr.B is designed to be weldable using standard industrial practices. For galvanized pipe, we recommend appropriate ventilation and removing the zinc layer at weld points to prevent fumes. -
Q: Is scaffolding application suitable for this product?
A: Yes, the combination of SCH40 thickness, Grade B strength, and galvanized surface makes it a common choice for scaffolding systems and structural supports. -
Q: What is the minimum order quantity (MOQ)?
A: The MOQ depends on the diameter and wall thickness. For standard sizes, we can accommodate trial orders and large bulk orders alike. Please contact us with your required specifications. -
Q: How is the pipe packaged for overseas shipping?
A: Bundles are securely strapped with steel bands, protected with plastic caps (optional), and can be wrapped in water-proof material if required. Export standard packaging is provided for all sea freight.
Choose Hemaokang Steel as your trusted supply partner for high-quality steel products. Our commitment is to deliver strong, durable, and cost-effective solutions while maintaining excellent communication and on-time delivery. Request a quote today and experience the difference of working with a dedicated global supplier.
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