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Help CenterASTM A252 Grade 3 Spiral Welded Carbon Steel Pipe 12 Inch OD for Piling
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As a professional manufacturer from Hemaokang Steel (Shandong) Co., Ltd., we are proud to offer high-quality ASTM A252 Grade 3 Spiral Welded Carbon Steel Pipe 12 Inch OD specifically designed for piling applications. Our company, established in 2025 and headquartered in Liaocheng, Shandong, China, has quickly grown to achieve an annual export value of US$50 million to US$100 million, serving diverse markets worldwide including North America, South America, Europe, Southeast Asia, Africa, and Oceania. With a dedicated team of 51–100 employees and ISO9001 certification, we ensure every pipe meets rigorous international standards. This product is engineered to provide exceptional structural support for deep foundation projects, offering superior strength, durability, and cost-efficiency.
The spiral welded carbon steel pipe manufactured under ASTM A252 Grade 3 specification is a preferred choice for piling because of its consistent quality and high load-bearing capacity. Below, we detail the key features, technical specifications, and benefits that make this pipe an ideal solution for your construction needs.
Key Features & Technical Specifications
| Parameter | Details |
|---|---|
| Standard | ASTM A252 Grade 3 |
| Outer Diameter | 12 inch (304.8 mm) |
| Wall Thickness | Customizable (typically 0.25–1.0 inch, subject to project requirements) |
| Length | Custom lengths (standard 20 ft, 40 ft, or as specified) |
| Material | Carbon Steel (ASTM A252 compliant) |
| Welding Process | Spiral Submerged Arc Welding (SAWH) |
| End Finish | Beveled, plain, or threaded (optional) |
| Surface Treatment | Black, varnished, or anti-corrosion coating (customizable) |
| Certification | ISO9001 (quality management system) |
Detailed Product Advantages
- High Strength & Durability: ASTM A252 Grade 3 offers a minimum yield strength of 45,000 psi (310 MPa) and a minimum tensile strength of 66,000 psi (455 MPa), ensuring reliable performance under heavy loads and adverse soil conditions.
- Spiral Welding Technology: The spiral submerged arc welding process creates a continuous, uniform seam that enhances the pipe's structural integrity and resistance to external pressure, making it ideal for deep piling.
- Cost-Effective: Compared to seamless pipes, spiral welded pipes offer lower production costs without compromising quality, translating to significant savings for large-scale piling projects.
- Customizable Dimensions: We offer flexible wall thickness and length options to meet specific engineering requirements, reducing waste and installation time.
- Corrosion Resistance Options: Available with various coatings (e.g., fusion-bonded epoxy, coal tar enamel) to extend service life in aggressive environments such as marine or chemical soil.
- Easy Handling & Installation: The pipe's light weight relative to its strength allows for simpler transportation and driving, reducing labor costs and equipment needs.
- Consistent Quality: Our ISO9001-certified production process ensures strict control over raw materials, welding parameters, and dimensional accuracy, delivering pipes that meet or exceed ASTM standards.
Applications & Customer Benefits
This pipe is specifically designed for piling and foundation engineering, including:
- Building foundations for high-rise structures, bridges, and industrial plants
- Marine and offshore structures (docks, piers, seawalls)
- Retaining walls, earth stabilization, and slope protection
- Transition piles for bridge abutments and culverts
- Deep foundation support in soft or unstable soil conditions
By choosing our ASTM A252 Grade 3 spiral welded pipe, you benefit from reduced project timelines thanks to our efficient logistics from Qingdao Port, and the assurance of a reliable supply chain backed by our company's substantial export capacity (US$50M–100M annually). Whether you need a standard 12-inch pipe or a custom solution, our engineering team is ready to support your project from design to delivery.
Frequently Asked Questions (FAQ)
-
What is the difference between ASTM A252 Grade 2 and Grade 3?
Grade 3 has higher strength requirements (minimum yield 45 ksi vs 35 ksi for Grade 2), making it suitable for more demanding piling applications. Our 12-inch pipe is offered in Grade 3 for optimal performance. -
Can you provide the pipe with a specific coating for marine environment?
Yes, we offer customizable anti-corrosion coatings such as FBE, 3LPE, or coal tar enamel. Please specify your requirement when ordering. -
What is the typical lead time for an order of 12-inch spiral welded pipes?
Lead time depends on quantity and customization. For standard sizes, it is typically 15–30 days after order confirmation. We can expedite for urgent projects. -
Do you supply test certificates for each batch?
Absolutely. We provide mill test certificates (MTC) in accordance with ASTM A252, including chemical composition and mechanical properties. Third-party inspection is also available upon request. -
What is the maximum length you can produce for this pipe?
We can produce lengths up to 40 feet (12 meters) as standard, and longer lengths up to 60 feet (18 meters) are possible depending on shipping and handling constraints. -
Is the pipe suitable for both driven and drilled piling methods?
Yes, the spiral welded pipe is compatible with both driving and drilling techniques. Its welded seam provides excellent integrity for impact driving, and the smooth surface facilitates drilling. -
How do you ensure the pipe meets the 12-inch OD tolerance?
Our production follows strict quality control with regular dimensional checks. The outer diameter tolerance is within ±1% of the nominal size, as per ASTM A252 requirements. -
Can I get a sample before placing a bulk order?
Yes, we can provide a sample pipe (subject to availability and freight charges) to verify quality and dimensions. Contact our sales team for details.
Trust Hemaokang Steel (Shandong) Co., Ltd. for your piling pipe needs. With an annual export value of US$50 million–US$100 million, a professional team of 51–100 employees, and ISO9001 certification, we are committed to delivering superior products and reliable service. Our strategic location in Liaocheng, Shandong, and convenient shipping from Qingdao Port ensure timely delivery to global markets. We invite you to contact us for a quote or technical consultation. Experience the strength and reliability of our ASTM A252 Grade 3 spiral welded pipe – your foundation for success.
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