Introduction to ASTM A252 Spiral Pipe

ASTM A252 spiral pipe is a welded steel pipe primarily used for piling applications, including deep foundations, bridge supports, marine structures, and construction projects. Manufactured using the spiral submerged arc welding (SSAW) process, ASTM A252 pipes offer high structural strength, excellent durability, and superior load-bearing capacity.

Unlike API 5L or ASTM A53 pipes, ASTM A252 is designed for structural applications rather than fluid transportation. It is commonly used in civil engineering and infrastructure projects where high-strength steel is required to support heavy loads.

Why Choose ASTM A252 Spiral Pipe?

✔ Ideal for piling, foundation, and marine applications
✔ High strength and load-bearing capacity
✔ Cost-effective alternative to seamless pipes
✔ Available in large diameters for deep foundation projects
✔ Custom coatings available for corrosion resistance

In this guide, we will cover ASTM A252 spiral pipe specifications, pricing, manufacturing process, key suppliers, and comparisons with other steel pipe standards.

ASTM A252 Spiral Pipe Specifications & Standards

ASTM A252 spiral pipes must meet strict chemical, mechanical, and dimensional requirements to ensure high structural performance and reliability.

Chemical Composition Requirements

Element	Maximum Percentage (%)
Carbon (C)	0.26
Manganese (Mn)	1.6
Phosphorus (P)	0.05
Sulfur (S)	0.045

Mechanical Properties

Property	Grade 1	Grade 2	Grade 3
Yield Strength (MPa)	≥ 205	≥ 240	≥ 310
Tensile Strength (MPa)	≥ 345	≥ 415	≥ 455
Elongation (%)	≥ 18	≥ 16	≥ 14

Dimensional Specifications

✔ Diameter Range: Φ219mm – Φ3500mm
✔ Wall Thickness: 6mm – 25mm
✔ Pipe Length: 6m, 9m, 12m, or customized
✔ End Finish: Plain end, beveled end, or flanged

Cangzhou Spiral Steel Pipes Group manufactures high-quality ASTM A252 spiral pipes that comply with international standards.

ASTM A252 Spiral Pipe vs. ASTM A53 & API 5L: Key Differences

ASTM A252 is specifically designed for piling applications, whereas ASTM A53 and API 5L serve fluid transportation and structural applications.

الميزة	ASTM A252	ASTM A53	API 5L
التطبيق	Piling, foundation, structural support	Low-pressure oil & gas, mechanical systems	High-pressure oil & gas pipelines
Material	Carbon steel	Carbon steel	Carbon steel (various grades)
عملية التصنيع	Welded (SSAW & LSAW)	Seamless & welded	Seamless & welded (ERW, SSAW, LSAW)
القوة	High	Medium	Very High
التكلفة	More affordable	Higher due to pressure requirements	Higher due to high-pressure applications

Which One Should You Choose?

✔ For piling and foundation applications → ASTM A252 is the best choice
✔ For low-pressure oil & gas applications → ASTM A53 is more suitable
✔ For high-pressure pipelines → API 5L is recommended

Cangzhou Spiral Steel Pipes Group manufactures various steel pipe grades to meet different project requirements.

ASTM A252 Spiral Pipe Price Per Ton (2025)

The price of ASTM A252 spiral pipes depends on factors like diameter, wall thickness, steel grade, and coatings. Below is an estimated wholesale price per ton for 2025:

سُمك الجدار (مم)	سعر الطن (بالدولار الأمريكي)
6 – 10 mm	900−900 – 900−1,200
12 – 18 mm	1,200−1,200 – 1,200−1,500
20 – 25 mm	1,500−1,500 – 1,500−1,900

Factors Affecting Pricing

✔ Steel Grade: Grade 3 costs more due to higher strength.
✔ Customization: Coatings, special dimensions, and end finishes increase the price.
✔ Order Quantity: Bulk purchases lower costs per ton.
✔ Shipping Costs: Prices vary depending on destination and freight charges.

Cangzhou Spiral Steel Pipes Group offers competitive pricing for bulk ASTM A252 spiral pipe orders.

ASTM A252 Spiral Pipe Coating & Corrosion Protection

Why Is Coating Important for ASTM A252 Spiral Pipes?

ASTM A252 spiral pipes are mainly used for piling, foundation support, and marine structures. Since these pipes are often exposed to moisture, soil, seawater, and harsh environmental conditions, they require protective coatings to prevent corrosion and structural deterioration.

Applying a protective coating helps to:
✔ Extend the service life of piling structures
✔ Prevent rust and corrosion in aggressive environments
✔ Enhance structural stability and load-bearing capacity
✔ Reduce maintenance and repair costs

Common Coating Types for ASTM A252 Spiral Pipes

نوع الطلاء	Best For	مقاومة التآكل	Temperature Resistance	المزايا
Fusion Bonded Epoxy (FBE)	Marine & underground piling	High	Up to 85°C	Strong adhesion, chemical resistance, smooth surface
3-Layer Polyethylene (3LPE)	Underground foundation piles	Very High	Up to 85°C	Excellent corrosion protection, high impact resistance
3-Layer Polypropylene (3LPP)	Offshore & deep-water piling	Very High	Up to 140°C	High impact resistance, superior mechanical strength
Coal Tar Epoxy (CTE)	Marine piling & bridge supports	Very High	Up to 100°C	Cost-effective, effective in high-moisture areas
Galvanized Coating	Structural piling applications	معتدل	Up to 60°C	Affordable, suitable for general-purpose use

Choosing the Right Coating for Your Project

✔ For marine and offshore piling → 3LPP or Coal Tar Epoxy is best
✔ For underground and bridge foundation piles → 3LPE provides excellent protection
✔ For general structural piling → FBE or Galvanized Coating works well

Cangzhou Spiral Steel Pipes Group provides customized coating solutions to meet specific piling project requirements.

How to Import ASTM A252 Spiral Pipes from China?

Step-by-Step Guide to Importing ASTM A252 Spiral Pipes

✔ Step 1: Choose a Reliable Supplier

• Verify ASTM A252, ISO, and API certifications
• Check production capacity and quality standards
• Request product samples and factory inspections

✔ Step 2: Request a Quotation

• Provide pipe specifications (diameter, thickness, steel grade, coating type)
• Get pricing for FOB, CIF, or EXW terms

✔ Step 3: Negotiate Terms & Finalize Order

• Discuss payment terms (T/T, L/C, etc.)
• Confirm production lead time and delivery schedule

✔ Step 4: Quality Inspection & Testing

• Arrange for third-party inspection (SGS, BV, etc.)
• Ensure compliance with contract specifications

✔ Step 5: Shipping & Customs Clearance

• Work with freight forwarders for smooth logistics
• Submit necessary customs documents (Bill of Lading, Packing List, Commercial Invoice, etc.)

Cangzhou Spiral Steel Pipes Group provides hassle-free export services, ensuring timely delivery worldwide.

Global Market Demand for ASTM A252 Spiral Pipes

Why Are ASTM A252 Spiral Pipes in High Demand?

✔ Growing Infrastructure Development – Demand for bridge foundations, deep-water ports, and structural piling is increasing.
✔ Marine & Offshore Construction – ASTM A252 pipes are widely used in wharf construction, seawalls, and offshore drilling platforms.
✔ Urban Expansion – Governments are investing in high-rise buildings, tunnels, and underground foundations requiring strong piling structures.
✔ Cost-Effective Alternative – Compared to seamless pipes, spiral welded pipes offer lower costs for large-scale piling projects.

Top Importing Regions for ASTM A252 Spiral Pipes

Region	التطبيقات الرئيسية	Demand (%)
North America (USA, Canada)	Bridge foundations, deep foundation piling	40%
Europe (Germany, UK, France)	Marine piling, construction	18%
Middle East (UAE, Saudi Arabia)	Offshore & desert piling projects	20%
Southeast Asia (India, Indonesia)	Infrastructure, underground metro piling	12%
Africa & Latin America	Mining, water supply, energy	10%

Cangzhou Spiral Steel Pipes Group exports high-quality ASTM A252 spiral pipes to over 50 countries worldwide.

Frequently Asked Questions (FAQ) About ASTM A252 Spiral Pipes

سؤال	الإجابة
What is ASTM A252 spiral pipe used for?	Piling, deep foundations, marine structures, and bridge supports.
What is the difference between ASTM A252 and A53?	ASTM A252 is for piling applications, while ASTM A53 is used for fluid transportation.
Can ASTM A252 pipes be custom-coated?	Yes, available coatings include 3LPE, 3LPP, FBE, and Coal Tar Epoxy.
What is the minimum order quantity (MOQ) for ASTM A252 pipes?	MOQ depends on the supplier, but bulk orders (50+ tons) receive better pricing.
How long does it take to manufacture ASTM A252 pipes?	Typically 15-45 days, depending on order size and specifications.
What are the payment terms for importing ASTM A252 pipes?	T/T (Telegraphic Transfer), L/C (Letter of Credit), and D/P (Documents Against Payment) are commonly used.
What sizes are available for ASTM A252 spiral pipes?	Diameters from Φ219mm to Φ3500mm, thicknesses from 6mm to 25mm.
Do ASTM A252 pipes require third-party inspection?	Yes, third-party testing and certification are recommended for ASTM A252 pipes.
Can Cangzhou Spiral Steel Pipes Group export to my country?	Yes, we export to over 50 countries worldwide.

Final Thoughts: Why Choose Cangzhou Spiral Steel Pipes Group for ASTM A252 Spiral Pipes?

For high-quality ASTM A252 spiral pipes, شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة is your best supplier in 2025!

✔ 27+ years of experience in SSAW pipe manufacturing
✔ 400,000 tons annual production capacity
✔ Certified by ASTM, API 5L, GB/T, ISO 9001
✔ Custom sizes, coatings, and global shipping
✔ Competitive pricing for bulk orders

📞 Need a bulk quote or technical consultation? Contact Cangzhou Spiral Steel Pipes Group today!