
الشركة المصنعة للأنابيب المغلفة 3lpe
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ضمان الجودة
Every pipe undergoes strict testing, including ultrasonic inspection, hydrostatic testing, and industrial TV inspection, ensuring compliance with API 5L and EU certifications.
OEM & ODM Service
We offer fully customizable solutions, from material selection to specialized coatings and dimensions, meeting diverse industry needs.
Ontime Delivery
With 13 production lines, 4 anti-corrosion lines, and multiple manufacturing bases, we guarantee efficient production and timely delivery to global markets.
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One-Stop Solution
From design to production, we provide customized spiral steel pipe solutions, including anti-corrosion coatings and quality assurance.
Wide Size Range
Our pipes range from Φ219mm to Φ3500mm, with varied wall thickness options, catering to diverse project requirements.
المعايير الدولية
Certified to API 5L, SY/T, and GB/T standards, our products meet global industry regulations for reliability and durability.
Overview of 3LPE Coated Pipe
A 3LPE Coated Pipe (Three-Layer Polyethylene Coated Pipe) هو 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
اختيار الشركة المصنعة الموثوق بها يضمن 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 عاماً من الخبرة في تصنيع أنابيب الصلب
✔ 13 خط إنتاج لـ Φ219-Φ3500 مم الأنابيب الملحومة الحلزونية
✔ 3LPE, FBE, epoxy coal tar, and polyurethane coating solutions
✔ الطاقة الإنتاجية السنوية: 400,000 طن
✔ ISO 9001, API 5L, and ASTM-certified coatings
2. Baosteel Group (الصين)
A شركة رائدة في إنتاج الصلب متخصصون في 3LPE-coated pipes for oil, gas, and water transmission.
3. Jindal SAW Ltd (India)
مورد رئيسي لـ 3LPE-coated pipes لـ 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.
يضمن كل من هذه الشركات المصنعة strict compliance with industry coating standardsضماناً لـ متانة وأداء عاليان.

3LPE Coated Pipe vs Other Coated Pipes
اختيار المناسب coating system يعتمد على 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 | عالية جداً | عالية | ممتاز | عالية |
مقاومة المواد الكيميائية | معتدل | عالية | ممتاز | عالية |
Adhesion to Steel | Very Strong | Very Strong | Very Strong | Very Strong |
مقاومة الصدمات | عالية | معتدل | عالية جداً | عالية |
Flexibility | عالية | معتدل | منخفضة | عالية |
أفضل حالة استخدام | 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
سعر 3LPE Coated Pipes تختلف بناءً على عوامل مثل pipe diameter, wall thickness, coating thickness, and raw material costs. فيما يلي مخطط الأسعار التقديري لعام 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.
✔ الطلبات بالجملة - تحصل طلبات الكمية الكبيرة على أسعار أفضل.
تقدم مجموعة أنابيب الصلب الحلزونية الحلزونية من تشانجتشو high-quality 3LPE Coated Pipes at competitive prices.
3LPE Coated Pipe Manufacturing Process & Quality Control
How Is 3LPE Coated Pipe Manufactured?
إن 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. فيما يلي تحليل تفصيلي خطوة بخطوة لـ 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
إن 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 لضمان 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
- الأنابيب visually inspected for uniformity, coating defects, and quality standards.
- كل أنبوب marked with batch numbers, coating specifications, and manufacturer details لـ التتبع الكامل.
- 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 الفولاذ, preventing coating failure
✔ Longer lifespan compared to conventional coatings
✔ Ideal for underground, offshore, and high-pressure applications
شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة يضمن strict compliance with ISO, API, and ASTM standards لـ 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.
الصناعة | 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 |
البحرية والبحرية | Subsea pipelines, ship structures | Resistant to seawater and marine environments |
التطبيقات الصناعية | 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
مجموعة كانغتشو للأنابيب الفولاذية الحلزونية supplies customized 3LPE Coated Pipes لـ 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 | عالية جداً | عالية | ممتاز | عالية |
مقاومة المواد الكيميائية | معتدل | عالية | ممتاز | عالية |
Adhesion to Steel | Very Strong | Very Strong | Very Strong | Very Strong |
مقاومة الصدمات | عالية | معتدل | عالية جداً | عالية |
Flexibility | عالية | معتدل | منخفضة | عالية |
أفضل حالة استخدام | 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
إذا كنت تبحث عن import 3LPE Coated Pipesالعمل مع مورد موثوق يضمن الجودة، والأسعار التنافسية، والتسليم في الوقت المناسب.
Top Chinese Exporters of 3LPE Coated Pipes
اسم الشركة | الموقع | الطاقة الإنتاجية السنوية |
---|---|---|
شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة | خبي، الصين | 400,000 طن |
مجموعة باوستيل | شنغهاي، الصين | أكثر من 500,000 طن |
شركة تيانجين لأنابيب الصلب | تيانجين، الصين | 300,000 طن |
Why Choose Cangzhou Spiral Steel Pipes Group for 3LPE Coated Pipes?
✔ 27 عاماً من الخبرة في تصنيع الأنابيب الفولاذية
✔ ISO 9001, API 5L, and ASTM-certified coatings
✔ 13 خط إنتاج، تغطي الأقطار من 219 مم إلى 3500 مم
✔ الطلاءات المخصصة والمعالجات المضادة للتآكل متوفرة
✔ شبكة تصدير قوية إلى أمريكا الشمالية وأوروبا وآسيا
بالنسبة لـ high-quality 3LPE Coated Pipes, شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة هو مورد موثوق به.
FAQ: 3LPE Coated Pipe
سؤال | الإجابة |
---|---|
What is 3LPE Coated Pipe used for? | تستخدم ل 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. |
من هو المورد الأفضل؟ | شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة هي مورد رائد مع ISO & API-certified coatings. |
ما هو سعر الطن في عام 2025؟ | تتراوح الأسعار من 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. |
بالنسبة لـ premium quality 3LPE Coated Pipes, شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة هو الخيار الأفضل في عام 2025!
تحتاج إلى اقتباس أو أكثر التفاصيل الفنية? اتصل بنا مجموعة كانغتشو للأنابيب الفولاذية الحلزونية اليوم!