Coated Spiral Steel Pipe: Comprehensive Guide for 2025

Overview of Coated Spiral Steel Pipe

Coated spiral steel pipes are an essential component in various industries, including oil and gas, water transmission, construction, and infrastructure projects. These pipes are made using spiral welding techniques and are then coated with specialized materials to enhance their durability, resistance to corrosion, and longevity.

Spiral steel pipes, also known as helical submerged arc welded (HSAW) pipes, are widely used due to their cost-effectiveness and ability to handle high pressure. The coating process further enhances their performance by protecting them from environmental factors such as moisture, chemicals, and extreme temperatures.

One of the leading manufacturers of coated spiral steel pipes is Cangzhou Spiral Steel Pipes Group Co., Ltd, a company with over 27 years of experience in producing high-quality steel pipes. Their products comply with international standards such as API Spec 5L, GB/T9711-2017, and SY/T5037-2018, making them a trusted choice for global buyers.

In this guide, we’ll explore different aspects of coated spiral steel pipes, including their manufacturing process, price trends, specifications, advantages, coating types, and applications.

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Top Manufacturers of Coated Spiral Steel Pipe

The demand for coated spiral steel pipes has led to the emergence of several manufacturers worldwide. However, not all manufacturers meet the same quality standards. Below are some of the leading manufacturers known for their high-quality products:

1. Cangzhou Spiral Steel Pipes Group Co., Ltd

• Location: Cangzhou, China
• Years in Business: 27+
• Annual Production Capacity: 400,000 tons
• Certifications: ISO9001, ISO14001, OHSAS18001
• Products: Spiral welded pipes (Φ219–Φ3500mm), anti-corrosion pipes, thermal insulation pipes
• Applications: Oil & gas transmission, water transportation, dredging, power plants

2. Baosteel Group Corporation

• Location: China
• Specialty: High-strength and corrosion-resistant steel pipes
• Applications: Offshore drilling, deep-sea pipelines, industrial piping

3. Nippon Steel Corporation

• Location: Japan
• Specialty: Advanced coating technology for spiral steel pipes
• Applications: Petrochemical, marine engineering, infrastructure projects

4. ArcelorMittal

• Location: Luxembourg
• Specialty: High-grade steel pipes for extreme environments
• Applications: Mining, oil & gas, heavy construction

5. American SpiralWeld Pipe Company

• Location: USA
• Specialty: Large-diameter spiral welded pipes
• Applications: Water and wastewater infrastructure, bridge construction

Comparison of Top Coated Spiral Steel Pipe Manufacturers

Manufacturer	Location	Annual Capacity	Key Applications	Certifications
Cangzhou Spiral Steel Pipes Group Co., Ltd	China	400,000 tons	Oil, gas, water, dredging	ISO9001, ISO14001, OHSAS18001
Baosteel Group	China	300,000 tons	Offshore drilling, pipelines	ISO, API 5L
Nippon Steel	Japan	250,000 tons	Petrochemical, marine projects	API, JIS
ArcelorMittal	Luxembourg	200,000 tons	Mining, oil & gas	ISO, EN
American SpiralWeld Pipe	USA	180,000 tons	Water infrastructure	ASTM, AWWA

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Coated Spiral Steel Pipe vs. Other Pipe Types: Key Differences

When selecting a pipeline for industrial applications, it’s essential to compare coated spiral steel pipes with other types of pipes, such as seamless pipes and longitudinal submerged arc welded (LSAW) pipes.

Comparison of Coated Spiral Steel Pipe vs Other Pipe Types

Feature	Coated Spiral Steel Pipe	Seamless Steel Pipe	LSAW Steel Pipe
Manufacturing Process	Spiral welding + coating	No welding, seamless extrusion	Longitudinal welding
Strength	High due to coatings and welding	Strong but limited to small diameters	Stronger for larger diameters
Corrosion Resistance	Excellent due to coatings	Moderate (requires additional coating)	Moderate
Cost	Cost-effective for large projects	Expensive	Expensive for large diameters
Application	Oil, gas, water, construction	High-pressure applications	Offshore, structural projects

Coated spiral steel pipes provide better cost efficiency, higher corrosion resistance, and larger diameter options compared to seamless and LSAW pipes.

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Coated Spiral Steel Pipe Price Per Ton in 2025

The price of coated spiral steel pipes depends on several factors, including raw material costs, coating type, production techniques, and global demand. Here’s an estimated price range for 2025:

Estimated Price of Coated Spiral Steel Pipe (2025)

Pipe Diameter (mm)	Wall Thickness (mm)	Coating Type	Price Per Ton (USD)
219 – 508	6 – 12	3LPE	$700-$900
508 – 1016	8 – 16	FBE	$800-$1,100
1016 – 1420	10 – 20	Coal Tar Epoxy	$900-$1,300
1420 – 3500	12 – 26	Polyurethane	$1,200-$1,500

Factors Affecting Price:

• Raw Materials: Steel prices fluctuate based on global market trends.
• Coating Type: Advanced coatings like 3LPE increase cost but enhance durability.
• Production Costs: Labor, energy consumption, and technology affect pricing.
• Supply and Demand: High demand in infrastructure projects raises prices.

For bulk orders and customized coatings, leading manufacturers like Cangzhou Spiral Steel Pipes Group Co., Ltd offer competitive pricing and tailored solutions.

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Coated Spiral Steel Pipe Specifications & Standards

To ensure reliability and performance, coated spiral steel pipes must meet various international standards. Below are the key specifications:

Standard Specifications for Coated Spiral Steel Pipes

Standard	Description	Application
API 5L	Covers seamless and welded steel pipes	Oil & gas transmission
ASTM A252	Covers welded and seamless steel pipe piles	Construction & foundation
GB/T9711-2017	Chinese standard for pipeline transportation	Natural gas, petroleum
SY/T5037-2018	Spiral submerged arc welded pipes	Industrial pipelines
EN 10217	Welded steel pipes for pressure purposes	Water & gas pipelines

Each standard defines specific requirements for chemical composition, mechanical properties, and coating types, ensuring that the pipes perform well under different conditions.

Types of Coatings for Spiral Steel Pipes & Their Advantages

Coating plays a crucial role in enhancing the longevity and performance of spiral steel pipes. The right coating selection depends on the application, environmental exposure, and required durability. Below are the most common coating types used in coated spiral steel pipes:

Comparison of Coating Types for Spiral Steel Pipes

Coating Type	Composition	Advantages	Best for Applications
3LPE (Three-Layer Polyethylene)	Fusion Bonded Epoxy (FBE) + Adhesive + Polyethylene	Excellent corrosion resistance, high mechanical strength, UV protection	Oil & gas pipelines, underground installations
FBE (Fusion Bonded Epoxy)	Epoxy resin-based coating	High adhesion, strong chemical resistance, eco-friendly	Water transmission, gas pipelines
3LPP (Three-Layer Polypropylene)	FBE + Adhesive + Polypropylene	Superior mechanical properties, impact resistance, high-temperature applications	Offshore pipelines, high-temperature environments
Coal Tar Epoxy	Coal tar + epoxy resin blend	Cost-effective, good under submerged conditions	Marine pipelines, sewage pipelines
Polyurethane Coating	Polyurethane-based	Abrasion resistance, flexibility, durability	Water supply, construction projects

Among these, 3LPE and FBE coatings are the most commonly used for long-distance pipelines due to their superior anti-corrosion properties and long service life.

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Coated Spiral Steel Pipe Manufacturing Process & Quality Control

Manufacturing coated spiral steel pipes involves several steps, from steel plate selection to coating application and final quality checks. Below is a breakdown of the process:

Step-by-Step Manufacturing Process

1. Raw Material Selection
   • High-quality steel plates (Q235, X42-X80) are sourced from trusted suppliers.
2. Spiral Welding (SAW – Submerged Arc Welding)
   • The steel plates are formed into a cylindrical shape and welded using double-sided submerged arc welding (DSAW) for high strength.
3. Pipe Inspection & Testing
   • Each pipe undergoes ultrasonic testing (UT), radiographic testing (RT), and hydrostatic pressure testing to ensure structural integrity.
4. Surface Preparation
   • Pipes are cleaned using abrasive blasting (Sa2.5 standard) to remove rust and contaminants for better coating adhesion.
5. Coating Application
   • The selected coating (FBE, 3LPE, etc.) is applied using automated systems for uniform coverage.
6. Curing & Quality Control
   • The coated pipes are cured at controlled temperatures and inspected for coating thickness, adhesion, and defects.
7. Final Inspection & Packaging
   • Pipes are labeled, bundled, and prepared for transport to ensure safe delivery.

Cangzhou Spiral Steel Pipes Group Co., Ltd’s Quality Control

As a leading producer, Cangzhou Spiral Steel Pipes Group Co., Ltd follows strict quality control measures:

• ISO9001 & API 5L certification for international compliance.
• 100% inspection policy before shipping.
• Third-party quality audits available upon request.

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Best Suppliers of Coated Spiral Steel Pipes in China

China is home to several well-established coated spiral steel pipe suppliers, offering competitive pricing and high-quality products. Here are some of the top suppliers:

Leading Suppliers in China

Supplier Name	Location	Production Capacity	Main Products	Certifications
Cangzhou Spiral Steel Pipes Group Co., Ltd	Cangzhou	400,000 tons/year	Spiral welded pipes, coated pipes	ISO9001, API 5L, GB/T9711
Tianjin Youfa Steel Pipe Group	Tianjin	500,000 tons/year	ERW, SSAW pipes	ASTM, API, ISO
Hengyang Valin Steel Tube Co.	Hunan	300,000 tons/year	Seamless & welded pipes	API 5L, EN, GB
Baosteel Group	Shanghai	600,000 tons/year	High-grade steel pipes	API, ASTM, ISO

For bulk orders or customized coatings, Cangzhou Spiral Steel Pipes Group Co., Ltd offers excellent pricing, quality assurance, and global delivery.

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Applications of Coated Spiral Steel Pipe in Oil, Gas, and Water Transmission

Coated spiral steel pipes are widely used in multiple industries due to their high strength, durability, and corrosion resistance.

Key Applications:

1. Oil & Gas Pipelines
   • Used for transporting crude oil, natural gas, and petroleum products over long distances.
   • Coating Recommendation: 3LPE or 3LPP for high-pressure, underground pipelines.
2. Water Transmission
   • Used for municipal water supply, irrigation systems, and desalination projects.
   • Coating Recommendation: FBE or Polyurethane for potable water applications.
3. Sewage and Drainage Systems
   • Protects against chemical corrosion from wastewater.
   • Coating Recommendation: Coal Tar Epoxy for submerged pipelines.
4. Marine & Offshore Pipelines
   • Used in underwater oil pipelines and offshore drilling projects.
   • Coating Recommendation: 3LPP for high-temperature, high-pressure environments.
5. Structural & Construction Projects
   • Used in bridge foundations, piling, and heavy-duty infrastructure.
   • Coating Recommendation: FBE for enhanced mechanical strength.

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FAQ: Coated Spiral Steel Pipes

Below are some frequently asked questions regarding coated spiral steel pipes:

Frequently Asked Questions (FAQ)

Question	Answer
What is a coated spiral steel pipe?	A spiral welded steel pipe that has been coated with protective layers to prevent corrosion and extend its lifespan.
What are the advantages of using coated pipes?	Coated pipes offer superior corrosion resistance, increased durability, and reduced maintenance costs.
Which coating type is best for oil pipelines?	3LPE or 3LPP coatings are preferred for oil pipelines due to their high resistance to corrosion and extreme temperatures.
How long do coated spiral steel pipes last?	With proper coating, these pipes can last 30-50 years depending on environmental conditions.
Are coated spiral steel pipes more expensive than uncoated ones?	Yes, coated pipes are slightly more expensive but provide long-term cost savings by reducing maintenance and replacement needs.
Can coated spiral steel pipes be customized?	Yes, manufacturers like Cangzhou Spiral Steel Pipes Group Co., Ltd offer custom coatings, diameters, and thicknesses based on project requirements.
Where can I buy coated spiral steel pipes in bulk?	You can contact Cangzhou Spiral Steel Pipes Group Co., Ltd for bulk orders with competitive pricing and global shipping options.

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Conclusion: Why Choose Cangzhou Spiral Steel Pipes Group Co., Ltd?

If you are looking for high-quality coated spiral steel pipes with competitive pricing and global delivery, Cangzhou Spiral Steel Pipes Group Co., Ltd is your best choice. With 27+ years of experience, ISO-certified production, and a commitment to quality, they are a trusted supplier for industries worldwide.

Key Advantages of Choosing Cangzhou Spiral Steel Pipes Group Co., Ltd:

✅ High Production Capacity: 400,000 tons per year
✅ Wide Range of Coatings: 3LPE, FBE, Coal Tar Epoxy, Polyurethane
✅ International Certifications: ISO9001, API 5L, GB/T9711
✅ Global Export Experience: Serving customers in oil, gas, water, and construction industries

For inquiries and bulk orders, contact Cangzhou Spiral Steel Pipes Group Co., Ltd today!