مصنع الأنابيب الملحومة الحلزونية GOST 20295
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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 GOST 20295 Spiral Welded Pipe
عندما يتعلق الأمر ب high-strength steel pipelines, الأنابيب الحلزونية الملحومة الحلزونية GOST 20295 plays a vital role in industries like oil & gas, water transmission, construction, and infrastructure development. This standard, established by Russia’s GOST (State Standard) system, ensures that spiral welded steel pipes meet strict mechanical, chemical, and performance requirements.
Unlike seamless or ERW (Electric Resistance Welded) pipes, الأنابيب الملحومة الحلزونية are known for their cost-effectiveness, high strength, and large-diameter capabilities, making them a preferred choice for long-distance pipeline projects.
In this guide, we’ll explore everything about الأنابيب الحلزونية الملحومة الحلزونية GOST 20295, including manufacturers, specifications, price trends, coatings, applications, and welding processes.
Top GOST 20295 Spiral Welded Pipe Manufacturers
Selecting a reliable manufacturer is crucial to ensure quality, durability, and compliance with the GOST 20295 standard. فيما يلي بعض من leading manufacturers:
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
✔ GOST 20295, API Spec 5L, and ISO 9001 certified
✔ الطاقة الإنتاجية السنوية: 400,000 طن
✔ Custom coatings available: FBE, 3LPE, cement mortar lining
2. TMK (Трубная Металлургическая Компания, Russia)
One of Russia’s largest steel pipe manufacturers, specializing in GOST-compliant pipes لـ oil & gas industries.
3. ChelPipe (Челябинский трубопрокатный завод, Russia)
A top Russian producer of large-diameter spiral welded pipes لـ water and gas transmission pipelines.
4. OMK (Объединенная Металлургическая Компания, Russia)
A leading supplier of high-strength, corrosion-resistant pipes لـ infrastructure projects.
5. Jindal SAW Ltd
A global manufacturer exporting الأنابيب الملحومة الحلزونية to Russia, Europe, and North America.
يضمن كل من هذه الشركات المصنعة strict adherence to GOST 20295 standardsضماناً لـ high durability and corrosion resistance.
GOST 20295 Spiral Welded Pipe vs Other Pipe Types
Choosing the right pipe depends on application, durability, cost, and strength. Here’s how الأنابيب الحلزونية الملحومة الحلزونية GOST 20295 compares with other common pipe types:
| الميزة | الأنابيب الحلزونية الملحومة الحلزونية GOST 20295 | ERW (Electric Resistance Welded) Pipe | أنابيب الصلب غير الملحومة |
|---|---|---|---|
| عملية التصنيع | Helical Submerged Arc Welding (HSAW) | High-frequency resistance welding | Produced without welding |
| Strength & Durability | High due to spiral seam | معتدل | Very high |
| Pressure Resistance | ممتاز | معتدل | Superior |
| مقاومة التآكل | Can be enhanced with coatings | Requires additional coating | Naturally more resistant |
| التكلفة | فعالة من حيث التكلفة | Slightly higher | باهظة الثمن |
| Size Availability | Large diameter (up to 3500mm) | Limited diameter | Limited diameter |
| التطبيق | Oil, gas, water pipelines, structural projects | Water transmission, construction | تطبيقات الضغط العالي |
Why Choose GOST 20295 Spiral Welded Pipes?
✔ High strength for long-distance pipelines
✔ Cost-effective for large-diameter applications
✔ Excellent for water transmission and industrial projects
✔ Easier to manufacture in long lengths
GOST 20295 Spiral Welded Pipe Price Per Ton in 2025
سعر GOST 20295 Spiral Welded Pipes varies based on factors like raw material costs, demand, coatings, and manufacturing location. فيما يلي النطاق السعري التقديري لعام 2025:
| قطر الأنبوب (مم) | سُمك الجدار (مم) | سعر الطن (بالدولار الأمريكي) |
|---|---|---|
| 219 – 600 | 6 – 10 | 850−850 – 850−1,250 |
| 610 – 1200 | 8 – 14 | 1,150−1,150 – 1,150−1,600 |
| 1220 – 1800 | 10 – 16 | 1,350−1,350 – 1,350−1,900 |
| 2000 – 3500 | 12 – 25 | 1,700−1,700 – 1,700−2,600 |
العوامل المؤثرة في السعر:
✔ Steel Prices: Fluctuations in raw material prices impact pipe costs.
✔ Manufacturing Costs: Labor, energy, and transportation expenses.
✔ Coatings & Treatments: Additional anti-corrosion coatings increase the price.
✔ Order Quantity: Bulk orders often receive better pricing.
تقدم مجموعة أنابيب الصلب الحلزونية الحلزونية من تشانجتشو competitive pricing and bulk discounts لـ GOST 20295-certified pipes.
GOST 20295 Spiral Welded Pipe Specifications & Standards
To meet GOST 20295 requirements, spiral welded pipes must adhere to strict specifications.
| المواصفات | Details |
|---|---|
| قياسي | GOST 20295:2025 |
| نطاق القطر | 219 مم - 3500 مم |
| سُمك الجدار | 6mm – 25mm |
| Material | Carbon Steel (GR B, X42-X80) |
| عملية التصنيع | Submerged Arc Welding (SAW) |
| Testing Methods | Ultrasonic, Hydrostatic, X-ray Inspection |
| خيارات الطلاء | FBE, 3LPE, Cement Mortar Lining |
These specifications ensure GOST 20295 Spiral Welded Pipes are strong, durable, and resistant to corrosion, making them ideal for oil & gas and water transmission.
GOST 20295 Spiral Welded Pipe Welding Process & Manufacturing
How Are GOST 20295 Spiral Welded Pipes Manufactured?
إن عملية التصنيع من GOST 20295 Spiral Welded Pipes follows a strict set of procedures to ensure high mechanical strength, durability, and compliance مع Russian and international standards. Below is a step-by-step breakdown of the production process:
- Steel Coil Selection
- High-quality carbon الفولاذ is selected based on GOST 20295 requirements.
- Common steel grades include GR B, X42, X52, X60, X70, and X80.
- Spiral Forming Process
- The steel strip is continuously fed into a forming machine where it is rolled into a spiral shape.
- إن helical seam is formed, which distributes stress more evenly, making it ideal for high-pressure applications.
- Submerged Arc Welding (SAW)
- Double-sided submerged arc welding (DSAW) is applied to ensure deep penetration and strong welds.
- This method enhances mechanical strength and prevents defects.
- Non-Destructive Testing (NDT) & Quality Control
- الاختبار بالموجات فوق الصوتية (UT) detects internal and external defects.
- الفحص بالأشعة السينية يضمن weld integrity.
- اختبار الضغط الهيدروستاتيكي verifies that pipes can withstand internal pressure without failure.
- Coating & Corrosion Protection
- Pipes are coated with Fusion Bonded Epoxy (FBE), 3LPE (Three-Layer Polyethylene), or cement mortar lining to prevent corrosion.
- Final Inspection & Certification
- يتم اختبار كل أنبوب من أجل dimensional accuracy, mechanical properties, and coating quality.
- Certified as per GOST 20295 and ISO 9001 standards.
Welding Methods Used in GOST 20295 Spiral Pipes
| Welding Method | المزايا |
|---|---|
| Submerged Arc Welding (SAW) | Deep penetration, strong and uniform welds |
| Double-Sided Welding (DSAW) | Ensures uniform strength, prevents weak points |
| الاختبار الهيدروستاتيكي | Verifies pressure resistance, ensures no leaks |
Cangzhou Spiral Steel Pipes Group Co., Ltd ensures all pipes meet GOST 20295 standards through rigorous quality control and advanced manufacturing techniques.
GOST 20295 Spiral Welded Pipe Suppliers & Exporters
إذا كنت تبحث عن import GOST 20295 Spiral Welded Pipesالعمل مع trusted exporter is essential. China remains a leading exporter due to its high manufacturing capacity, competitive pricing, and robust quality control.
Top Chinese Exporters of GOST 20295 Spiral Welded 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 GOST 20295 Pipes?
✔ 27 عاماً من الخبرة في تصنيع الأنابيب الفولاذية
✔ GOST 20295, API, and ISO certified
✔ 13 خط إنتاج، تغطي الأقطار من 219 مم إلى 3500 مم
✔ الطلاءات المخصصة والمعالجات المضادة للتآكل متوفرة
✔ Strong export network to Russia, CIS countries, Europe, and the Middle East
بالنسبة لـ high-quality GOST 20295 Spiral Welded Pipes, شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة هو مورد موثوق به.
FAQ: GOST 20295 Spiral Welded Pipe
| سؤال | الإجابة |
|---|---|
| What is GOST 20295 Spiral Welded Pipe used for? | Mainly used for oil & gas transmission, water pipelines, and structural projects. |
| What coatings are available? | FBE, 3LPE, cement mortar lining, and galvanized coatings. |
| How does it compare to API 5L pipes? | GOST 20295 is ideal for Russia and CIS countries, while API 5L is used globally. |
| من هو المورد الأفضل؟ | شركة مجموعة تشانغتشو للأنابيب الفولاذية الحلزونية المحدودة هي مورد رائد مع ISO & GOST 20295 certifications. |
| ما هو سعر الطن في عام 2025؟ | تتراوح الأسعار من 850to850 to 850to2,600 per ton, depending on size and coating. |
| How are these pipes tested? | Ultrasonic, hydrostatic, and X-ray inspections ensure quality compliance. |
| What are the advantages of spiral welded pipes over ERW pipes? | Higher strength, better pressure resistance, and cost-effectiveness for large diameters. |
| Do GOST 20295 pipes require coatings? | Yes, coatings like FBE, 3LPE, or cement mortar lining enhance corrosion resistance. |
| Are GOST 20295 pipes available in large diameters? | Yes, they are available in sizes up to 3500mm in diameter. |
الأفكار النهائية
GOST 20295 Spiral Welded Pipes are widely used in oil & gas, water transmission, and industrial applications بسبب high strength, corrosion resistance, and cost-effectiveness.
If you’re looking for a reliable supplier, 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!
