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| Customization: | Available |
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| Compound Material: | Steel Plastic Composite Pipe |
| Material: | PEX-Al-PEX |
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Donghong Steel Oil Casing Pipe is designed for use in oil and gas well drilling operations to support the well walls and prevent collapse during extraction.
Manufactured according to API 5CT standards, these pipes are made of high-quality carbon steel and alloy steel, ensuring excellent mechanical strength, corrosion resistance, and long-term performance under harsh drilling environments.
We supply a wide range of grades including J55, K55, N80, L80, and P110, with both seamless and ERW options available to meet diverse oilfield requirements.
Product Advantages:
High Pressure Resistance: Excellent mechanical strength suitable for deep and high-pressure wells.
Superior Corrosion Protection: Optional internal & external anti-corrosion coatings (FBE / 3PE / Epoxy).
Precise Threading & Sealing: API-certified connections ensure leak-free operation.
Customizable Solutions: Full range of sizes, grades, and connection types for specific project needs.
Quality Assurance: 100% tested before delivery with API 5CT certification and mill test reports.
| Nominal Diameter/ mm | Inner Coating Layer /mm | Outer coating layer,mm | |
| Ordinary level | Strengthen level | ||
| DN ≤65 | >0.3 | >0.6 | >0.8 |
| 65≤DN≤150 | >0.35 | >0.8 | >1.0 |
| 150≤DN≤300 | >0.35 | >0.8 | >1.2 |
| 300≤DN≤800 | >0.4 | >1.0 | >1.3 |
| 800≤DN≤1200 | >0.45 | >1.2 | >1.8 |
| 1200≤DN≤3600 | >0.45 | >1.5 | >1.8 |
Shandong Donghong Pipe Industry Co., Ltd. proudly presents our Customizable Epoxy Coated Carbon Steel Conduit, engineered to meet a diversity of industrial requirements with unmatched adaptability.
Product Description:
Shandong Donghong Pipe Industry Co., Ltd. offers an exceptional range of anti-corrosion steel pipes engineered to excel under diverse working conditions. Our cutting-edge epoxy and plastic-coated pipes are perfect for buried installations, trenchless traction, pipe jacking, and open-air applications. Explore our robust anti-corrosion solutions designed to meet every need:
Choose Shandong Donghong Pipe Industry Co., Ltd. for premium-quality anti-corrosion steel pipes tailored to your specific applications.
Pipe fittings is an extremely important part of the piping system is also a weak link in the quality of engineering construction, in order to protect the quality of customer projects, Donghong Pipeline spent a huge amount of money to build a supporting pipe fittings production workshop, which fully reflects the company's determination to build an integrated solution.
| Flange Connection | Clamp Connection |
Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856) is proudly headquartered in Qufu, China, the esteemed hometown of Confucius. As a premier engineering pipeline manufacturer, we are also a distinguished pipeline engineering service provider and general contractor. Our expertise spans four specialized categories of functional and customized pipelines:
At Donghong, we have cultivated a robust industrial ecosystem that integrates design institutes, financial institutions, port logistics, construction units, and upstream and downstream enterprises. Our vision is to become a global leader in providing comprehensive pipeline system solutions. We are dedicated to developing intelligent pipelines that enhance human life and ensure the safety of pipeline transportation systems.
Shandong Donghong Pipe Industry Co., Ltd. prides itself on a highly skilled team of over 200 research and development experts and holds an impressive portfolio of more than 100 patents. Utilizing national technology R&D platforms such as the National Enterprise Technology Center and CNAS Laboratory, Donghong leads the charge in digitalizing and smartifying pipeline technologies. Our pioneering efforts are instrumental in advancing the engineering pipeline industry and supporting critical national projects like the South-to-North Water Diversion and urban water supply integration. With a steadfast commitment to innovation and quality, Donghong is dedicated to serving key strategic and essential community projects.
Our company offers a wide range of top-quality pipe products and fittings that meet international standards. With certifications such as CE, BV, ISO, and wars, our products surpass industry benchmarks. We are dedicated to providing outstanding services, including project consulting, pipe system solutions, design suggestions, pipeline contracting, and repair services. Furthermore, we support OEM/ODM services, allowing for customization in material, specifications, logo, packaging, and connection methods to meet your unique needs.
For payment terms, we accept T/T or L/C at sight. To ensure the highest quality of our goods, we encourage customers to visit our facilities, conduct necessary tests, and we can provide samples for pre-production testing. Trust Shandong Donghong Pipe Industry Co., Ltd. for reliable, high-quality products and services.
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