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Help CenterHeavy Duty Carbon Steel Pipe for Structural Engineering - ASTM A572 Gr.50, Hot Dip Galvanized, ERW
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At Hemaokang Steel (Shandong) Co., Ltd., we specialize in providing high quality carbon steel pipe solutions for structural engineering applications. This heavy duty pipe is produced according to ASTM A572 Gr.50, using the electric resistance welding (ERW) process and a hot dip galvanized coating. The result is a cost effective, strong and durable product that performs well in harsh environments. Our factory in Liaocheng, Shandong, combined with professional export experience, ensures a steady supply for customers around the world.
Product Specifications and Features
The pipe is made from high strength low alloy structural steel conforming to ASTM A572 Gr.50. It offers a minimum yield strength of 345 MPa (50 ksi) and a minimum tensile strength of 450 MPa (65 ksi). This grade is widely used in structural applications where weight savings and reliability matter. The ERW manufacturing method gives precise outer diameter tolerance, concentricity, and a controlled weld seam, making the pipe easy to cut, weld and install at your job site. After welding, the pipe is hot dip galvanized, which means the entire surface is coated with zinc to form a protective layer. This coating is durable and self-healing to some extent, providing long lasting corrosion resistance even when the pipe is scratched or nicked.
Key Benefits
- High load bearing capacity: allows lighter sections without compromising strength, reducing material costs and installation time.
- Corrosion resistance: hot dip galvanized coating is suitable for outdoor and industrial environments, minimizing maintenance and replacement frequency.
- Weldability: ASTM A572 Gr.50 offers favorable welding characteristics, enabling efficient jointing in structural fabrication.
- Versatility: available with beveled or plain ends, various diameters, wall thicknesses, and lengths to match project specifications.
- Cost effectiveness: combined advantages of lower material usage and extended service life deliver lower total ownership cost.
- Global export: shipped from Qingdao port with proper bundling, protective caps and marking, supporting overseas logistics.
Dimensional and Technical Specifications
| Item | Specification |
| Steel Grade | ASTM A572 Gr.50 (Carbon Steel) |
| Manufacturing Process | ERW (Electric Resistance Welding) |
| Surface Treatment | Hot Dip Galvanized (HDG) |
| Yield Strength | 345 MPa min (50 ksi) |
| Tensile Strength | 450 MPa min (65 ksi) |
| Length | 6 m, 12 m or customized (upon request) |
| End Type | Plain, beveled, threaded or couplered (available upon request) |
| Certification | Manufactured under ISO9001 quality management system |
| Shipment | FOB/CIF from Qingdao, China |
To ensure the pipe meets project needs, we implement strict quality control procedures. Each heat is tested for chemical composition and mechanical properties measured. Dimensional tolerances are checked regularly, and zinc coating thickness can be adjusted according to customer requirements. Test certificates and mill test reports are provided with every shipment. Our production is managed under an ISO9001 certified system, giving customers confidence in consistent quality and traceability.
Application Range
This heavy duty steel pipe is well suited for structural engineering including building frames, bridge construction, industrial facilities, pipeline supports, towers, and storage racks. It is also used in agricultural infrastructure, solar panel frames and general mechanical applications where dependable structural components are required.
About Us and Global Service
With an annual export value of US$50 million to US$100 million and a team of 51-100 employees, Hemaokang Steel has the resources and experience to handle large scale orders. We serve markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia and the domestic market. Located in Liaocheng, Shandong, we enjoy convenient access to raw materials and port facilities in Qingdao for timely delivery. We welcome inquiries on custom sizes, special coatings, and packaging requirements. Please contact us for a competitive quotation and professional technical support.
Frequently Asked Questions
Q: What does ASTM A572 Gr.50 mean?
A: It is a high strength low alloy structural steel grade with specified minimum yield strength of 50 ksi (345 MPa). It combines strength, toughness and weldability for structural applications.
Q: Can I order custom lengths or wall thicknesses?
A: Yes. We offer custom diameters, wall thicknesses and lengths. Please send your detailed drawings or specifications, and our team will confirm feasibility and lead time.
Q: Is hot dip galvanized pipe suitable for outdoor use?
A: Yes. The zinc coating provides excellent protection against moisture, rain and atmospheric corrosion, making it widely used for outdoor structures, fencing and support frames.
Q: What is the zinc coating thickness?
A: The thickness can be specified by the customer or follow standard practice, typically in the range of 40-85 μm per coating, with additional options available. We recommend a thickness based on expected service environment.
Q: Do you provide mill test certificates?
A: Yes. We provide mill test certificates, inspection reports and other required documentation to support quality verification.
Q: How does ERW pipe compare to seamless pipe?
A: ERW pipe is made from steel coil by forming and welding, offering closer dimensional tolerances and cost advantages for many structural uses. Seamless pipe is often preferred for high-pressure applications. For structural engineering, ERW is widely accepted when properly specified.
Q: What packaging and shipping methods are available?
A: We can pack pipes in bundles with steel strips or in open containers with supports. Loose pipes are individually protected with caps. We ship from Qingdao port using FOB, CIF or other terms based on your contract.
Q: Can the pipe be welded and fabricated easily?
A: Yes. ASTM A572 Gr.50 has good weldability, and our ERW pipe is suitable for standard structural steel fabrication methods including cutting, drilling, welding and bolting. Always follow appropriate welding procedures and electrode selection.
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