Zhongxin Tube
Mechanical & Metallurgical Composite Pipes - Corrosion Solutions for the Chemical Industry
In petrochemical refineries, chemical plants, fine chemical facilities and storage & transportation systems, process media such as hydrogen sulfide (H₂S), carbon dioxide (CO₂), chloride ions, acid-base media, sulfides and high-temperature oil and gas will cause severe corrosion, erosion and material failure to the pipeline system. Traditional carbon steel pipelines are prone to leakage, short service life and frequent maintenance, which seriously affect production safety, equipment continuity and economic benefits.
Jiangsu Zhongxin Pipe Sci-tech Co., Ltd. provides customized corrosion-resistant alloy composite pipes, lined pipes and surfacing pipes solutions for the petrochemical industry. Our products can effectively resist high-temperature, high-pressure and strong corrosion working conditions, ensuring the long-term safe and stable operation of petrochemical process pipelines.
Core Advantages
Excellent Corrosion and Erosion Resistance
Adopting high-grade alloys such as 2205/2507 duplex stainless steel, 625/825 nickel-based alloy, 316L and 904L, it can effectively resist H₂S, CO₂, chloride ion stress corrosion, acid-base corrosion and high-temperature erosion.
Adaptability to High Temperature and High Pressure
Suitable for high-temperature and high-pressure working conditions of petrochemical processes, with stable mechanical properties and safe and reliable structure.
Reliable Metallurgical Bonding Strength
Through automatic surfacing technology, the alloy layer and the base pipe form a firm metallurgical bond, eliminating delamination, bubbling and interface corrosion.
Extend Service Life & Reduce Comprehensive Costs
Greatly reduce the frequency of pipeline replacement, maintenance and unplanned shutdowns, effectively lowering the full-life cycle cost of petrochemical projects.
Strict Quality Inspection & Compliance with International Standards
Full-process non-destructive testing, hydrostatic testing and performance inspection are carried out. The products comply with petrochemical industry standards such as GB/T 31940, API 5L, API 5LC, API 5LD, DNV-ST-F101, NACE MR0175/ISO 15156 and ASME.
Recommended Products
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Adopting advanced mechanical spinning composite technology, the mechanical composite steel pipe closely bonds two complementary metal materials (usually carbon steel as the base pipe, and stainless steel, duplex steel, nickel-based alloy, titanium alloy, or Monel alloy as the inner liner) through elastic and plastic deformation. It requires no high-temperature fusion, featuring full-process green environmental protection and high energy efficiency. Strictly complying with international and industry standards such as API-5LD, DNV-ST-F101, SHELL DEP 31.40.20.32-Gen., ADNOC-AGES, GB/T31940, and CJ/T 192, the product combines the high strength and high pressure-bearing capacity of the outer base pipe with the corrosion resistance and wear resistance of the inner cladding, effectively solving the industry pain points of "insufficient strength" or "poor corrosion resistance" of single-material pipes.
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