الشركة المصنعة للأنابيب المغلفة 3lpe

Overview of 3LPE Coated Pipe

A 3LPE Coated Pipe (Three-Layer Polyethylene Coated Pipe) is a high-performance steel pipe coated with three protective layers: an epoxy primer, an adhesive layer, and a polyethylene (PE) top layer. This coating system provides exceptional corrosion resistance, high mechanical strength, and superior durability, making it ideal for oil & gas pipelines, water transmission, and underground applications.

Key Features of 3LPE Coated Pipe

✔ Excellent corrosion resistance for underground and underwater pipelines
✔ Strong adhesion to steel surfaces, preventing coating failure
✔ High resistance to impact, abrasion, and mechanical stress
✔ Superior chemical resistance against acids, alkalis, and saltwater
✔ Longer service life compared to conventional coatings

This guide will cover everything about 3LPE Coated Pipes, including manufacturing processes, specifications, applications, price trends, and benefits.

Top 3LPE Coated Pipe Manufacturers

Choosing a trusted manufacturer ensures high-quality coatings, compliance with international standards, and long-lasting pipeline performance. Below are some of the leading 3LPE Coated Pipe manufacturers in 2025:

1. Cangzhou Spiral Steel Pipes Group Co., Ltd.

✔ 27 years of experience in steel pipe manufacturing
✔ 13 production lines for Φ219–Φ3500mm spiral welded pipes
✔ 3LPE, FBE, epoxy coal tar, and polyurethane coating solutions
✔ Annual production capacity: 400,000 tons
✔ ISO 9001, API 5L, and ASTM-certified coatings

2. Baosteel Group (China)

A leading steel producer specializing in 3LPE-coated pipes for oil, gas, and water transmission.

3. Jindal SAW Ltd (India)

A major supplier of 3LPE-coated pipes for pipeline transportation, marine industry, and infrastructure projects.

4. Tenaris (Global)

A world-class manufacturer offering high-performance 3LPE coatings for offshore and industrial pipelines.

5. Welspun Corp Ltd (India)

A globally recognized leader in anti-corrosion steel pipes, providing 3LPE coatings for extreme environments.

Each of these manufacturers ensures strict compliance with industry coating standards, guaranteeing high durability and performance.

3LPE Coated Pipe vs Other Coated Pipes

Selecting the right coating system depends on application, durability, cost, and environmental factors. Here’s how 3LPE Coated Pipe compares with other coating types:

الميزة	3LPE Coated Pipe	FBE (Fusion Bonded Epoxy) Coated Pipe	Epoxy Coal Tar Coated Pipe	Polyurethane Coated Pipe
مقاومة التآكل	Very High	High	Excellent	High
Chemical Resistance	معتدل	High	Excellent	High
Adhesion to Steel	Very Strong	Very Strong	Very Strong	Very Strong
Impact Resistance	High	معتدل	Very High	High
Flexibility	High	معتدل	Low	High
Best Use Case	Underground pipelines, high-impact areas	Oil & gas pipelines, marine applications	Underground sewage, industrial applications	District heating, oil & gas pipelines

Why Choose 3LPE Coated Pipes?

✔ Best for underground and high-impact applications
✔ Superior adhesion and flexibility compared to traditional coatings
✔ Long-lasting protection against corrosion and environmental damage
✔ High mechanical strength for extreme conditions

3LPE Coated Pipe Price Per Ton in 2025

The price of 3LPE Coated Pipes varies based on factors such as pipe diameter, wall thickness, coating thickness, and raw material costs. Below is an estimated pricing chart for 2025:

قطر الأنبوب (مم)	سُمك الجدار (مم)	Coating Thickness (μm)	سعر الطن (بالدولار الأمريكي)
219 – 600	6 – 10	1.5 – 2.5 mm	1,800−1,800 – 1,800−2,600
610 – 1200	8 – 14	2.5 – 3.5 mm	2,200−2,200 – 2,200−3,000
1220 – 1800	10 – 18	3.5 – 4.5 mm	2,700−2,700 – 2,700−3,700
2000 – 3500	12 – 25	4.5 – 5.5 mm	3,300−3,300 – 3,300−4,500

العوامل المؤثرة في السعر:

✔ Coating Thickness – Thicker coatings cost more due to additional material usage.
✔ Pipe Diameter & Length – Larger pipes require more coating material, increasing costs.
✔ Manufacturing Costs – Labor, energy, and transportation expenses impact pricing.
✔ Bulk Orders – Large quantity orders receive better pricing.

Cangzhou Spiral Steel Pipes Group offers high-quality 3LPE Coated Pipes at competitive prices.

3LPE Coated Pipe Manufacturing Process & Quality Control

How Is 3LPE Coated Pipe Manufactured?

The Three-Layer Polyethylene (3LPE) coating process involves applying three protective layers onto a steel pipe to create a highly durable, corrosion-resistant, and mechanically strong pipeline. Below is a step-by-step breakdown of the 3LPE Coated Pipe manufacturing process:

1. Surface Preparation

• The steel pipe is cleaned using shot blasting or sandblasting to remove rust, scale, and contaminants.
• A roughened surface is created to improve adhesion of the 3LPE coating.

2. Application of the Three-Layer Coating

The 3LPE coating system consists of three distinct layers:

Layer 1: Fusion Bonded Epoxy (FBE) Primer

• A fusion-bonded epoxy (FBE) layer is applied to the pipe’s surface.
• This provides excellent corrosion resistance and strong adhesion to the steel.

Layer 2: Adhesive Layer

• A special adhesive is applied over the FBE layer.
• This acts as a bonding agent between the FBE primer and the polyethylene top layer.

Layer 3: Polyethylene (PE) Outer Layer

• A high-density polyethylene (HDPE) or medium-density polyethylene (MDPE) layer is extruded onto the pipe.
• This provides mechanical protection, impact resistance, and UV protection.

3. Curing & Hardening

• The coated pipe is allowed to cool in a controlled environment to ensure proper hardening and chemical bonding.
• This step guarantees that the coating remains durable, flexible, and resistant to cracking.

4. Quality Control & Testing

• Coating Thickness Measurement ensures the required thickness is achieved.
• Adhesion Testing verifies the bond strength of the three layers.
• Impact Resistance Testing ensures the coating can withstand mechanical stress.
• Salt Spray & Corrosion Resistance Testing assesses long-term durability in harsh environments.

5. Final Inspection & Packaging

• Pipes are visually inspected for uniformity, coating defects, and quality standards.
• Each pipe is marked with batch numbers, coating specifications, and manufacturer details for full traceability.
• Pipes are then bundled, packed, and prepared for shipping.

Why 3LPE Coated Pipes Are Preferred?

✔ Superior resistance to corrosion, moisture, and extreme temperatures
✔ High mechanical strength, preventing damage during transportation and installation
✔ Strong adhesion to steel, preventing coating failure
✔ Longer lifespan compared to conventional coatings
✔ Ideal for underground, offshore, and high-pressure applications

شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة ensures strict compliance with ISO, API, and ASTM standards for high-quality 3LPE Coated Pipes.

3LPE Coated Pipe Applications & Industry Uses

Where Are 3LPE Coated Pipes Used?

3LPE Coated Pipes are widely used in industries requiring high corrosion protection, impact resistance, and long-term durability.

Industry	التطبيق	Why 3LPE Coated Pipes?
Oil & Gas Industry	Underground and offshore pipelines	High resistance to oil, gas, and chemicals
نقل المياه	Potable and wastewater pipelines	Corrosion-resistant, safe for drinking water
Marine & Offshore	Subsea pipelines, ship structures	Resistant to seawater and marine environments
Industrial Applications	Chemical processing, high-wear environments	Withstands aggressive chemicals and abrasion
Power Plants	Cooling water systems, exhaust ducts	Withstands high temperatures and harsh chemicals

Why 3LPE Coating is Preferred for Oil & Gas Pipelines?

✔ Withstands extreme corrosive and high-temperature environments
✔ Resistant to saltwater, acids, and harsh chemicals
✔ Enhances pipeline longevity and reduces maintenance costs
✔ Provides excellent mechanical strength for high-pressure applications

Cangzhou Spiral Steel Pipes Group supplies customized 3LPE Coated Pipes for oil & gas, water transmission, marine, and industrial applications.

3LPE Coated Pipe vs Other Anti-Corrosion Coatings

When selecting anti-corrosion coatings, it’s important to compare 3LPE Coating with other commonly used coatings.

الميزة	3LPE Coated Pipe	FBE (Fusion Bonded Epoxy) Coated Pipe	Epoxy Coal Tar Coated Pipe	Polyurethane Coated Pipe
مقاومة التآكل	Very High	High	Excellent	High
Chemical Resistance	معتدل	High	Excellent	High
Adhesion to Steel	Very Strong	Very Strong	Very Strong	Very Strong
Impact Resistance	High	معتدل	Very High	High
Flexibility	High	معتدل	Low	High
Best Use Case	Underground pipelines, high-impact areas	Oil & gas pipelines, marine applications	Underground sewage, industrial applications	District heating, oil & gas pipelines

Key Advantages of 3LPE Coated Pipes

✔ Better mechanical strength and flexibility compared to epoxy coatings
✔ Ideal for underground pipelines, offshore, and industrial applications
✔ Provides excellent impact resistance and corrosion protection
✔ Long-lasting protection against harsh environmental conditions

3LPE Coated Pipe Suppliers & Exporters

If you are looking to import 3LPE Coated Pipes, working with a reliable supplier ensures quality, competitive pricing, and timely delivery.

Top Chinese Exporters of 3LPE Coated Pipes

Company Name	الموقع	Annual Production Capacity
شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة	Hebei, China	400,000 طن
مجموعة باوستيل	Shanghai, China	500,000+ tons
Tianjin Steel Pipe Co.	Tianjin, China	300,000 طن

Why Choose Cangzhou Spiral Steel Pipes Group for 3LPE Coated Pipes?

✔ 27 years of experience in steel pipe manufacturing
✔ ISO 9001, API 5L, and ASTM-certified coatings
✔ 13 production lines, covering diameters from 219mm to 3500mm
✔ Custom coatings and anti-corrosion treatments available
✔ Strong export network to North America, Europe, and Asia

For high-quality 3LPE Coated Pipes, شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة is a trusted supplier.

FAQ: 3LPE Coated Pipe

سؤال	الإجابة
What is 3LPE Coated Pipe used for?	Used for oil & gas pipelines, marine structures, industrial applications, and water transmission.
How does 3LPE Coating compare to FBE coatings?	3LPE provides better mechanical strength and flexibility, while FBE offers superior adhesion.
What is the lifespan of a 3LPE Coated Pipe?	50-70 years, depending on environmental exposure and maintenance.
Who is the best supplier?	شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة is a leading supplier with ISO & API-certified coatings.
What is the price per ton in 2025?	Prices range from 1,800to1,800 to 1,800to4,500 per ton, depending on size and coating thickness.
Is 3LPE Coating safe for drinking water pipelines?	Yes, it is widely used in potable water transmission systems.
Can 3LPE Coated Pipes be used in marine environments?	Yes, they offer excellent resistance to seawater and harsh offshore conditions.

For premium quality 3LPE Coated Pipes, شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة is your best choice in 2025!

Need a quote or more technical details? Contact Cangzhou Spiral Steel Pipes Group اليوم!