Cangzhou Spiral Steel Pipes Group Co.ltd
The Solid Foundation for Project SuccessSpiral Welded Steel Pipe for Desalination
Solution For Seawater Desalination Spiral Steel Pipe
OD: 219-3620mm
THK: 5-24.5mm
Longth: 1-18m Or Custom
Steel Grade: Gr B,X42,X52,X60,X70,etc.
Standard: API 5L
MOQ: 2-5 Tons
Payment: TT/LC
OEM/ODM: Accept
Capacity: 1000Pieces/Week
Certification: CE/API 5L/ISO9001/ISO14001/ISO45001,etc.
Delivery Time: 7-45 Days
Application: Seawater transmission pipeline, corrosion resistant pipeline.
Lifetime： 50 year+
Making Process: SSAW
"Lifeline" Project In The Middle East
Cangluo Group x Deep Strategic Partner of Saudi Water Authority
Saudi Arabia is the largest seawater desalination market in the world. Cangzhou Spiral Steel Pipe Manufacturing Group has cooperated with Saudi Water Authority for many years and supplied spiral welded steel pipes of various sizes for seawater desalination. These pipes are specially customized for seawater desalination solutions and have higher corrosion resistance and strength than ordinary pipes. The main differences and advantages are shown in the following aspects.
These spiral steel pipes specially used for seawater desalination are used in the seawater desalination project in Saudi Arabia, successfully conveying the continuous water of life to all corners of Saudi Arabia, making the dry fields have green vitality, and people no longer have to worry about drinking water.
At the site of Shatrays water pipeline, the customer said excitedly: "The quality of the Cangzhou spiral steel pipe is excellent and the supply is guaranteed.".
Advantage Of Differentiation
Material upgrade: In Cangzhou Spiral Steel Tube Manufacturing Group Co., Ltd., these steel coils specially used for the production of seawater desalination pipes are produced by large-scale raw material plants such as HBIS GROUP Corporation and Baosteel. The plant is located in the large-scale industrial belt of raw materials in Beijing-Tianjin-Hebei Region, and has natural advantages in the selection of raw materials. Therefore, raw materials can be selected optimally and strictly to ensure that the raw materials for the production of pipelines are guaranteed.
Anti-corrosion technology: 3PE (three-layer polyethylene) or even higher grade polypropylene anti-corrosion coating is adopted, and the body still has passive protection capacity even if there are scratches during transportation.
Precision welding: "100% ultrasonic detection" and "pipe end flat head process" are introduced to ensure that each pipe is tightly jointed during butt joint and prevent joint leakage.
Service Guarantee: Solve "Overseas Delivery Difficulties"
Global Delivery System: From Cangzhou Plant To Red Sea Port
Export performance: The export map of steel pipe products of Cangzhou Spiral Steel Tube Group covers 50 countries and regions, including Saudi Arabia, Iran's natural gas, Canada's municipal water supply and other practical experience.
Logistics scheme: the unique "straw cushion layer and soft isolation" protection scheme for the export steel pipe ensures that the 18m long pipe will arrive with zero damage by sea transportation.
Customization: support SSAW customization process, non-standard customization can be carried out according to the drawings provided by the customer to meet the differences of different national standards.
Common Fluid Transfer Piping vs. Cangluo Seawater Desalination Special Piping
| Comparison Of Dimensions | Ordinary fluid delivery pipe (industry standard) | Cangluo sea water desalination special pipe (Saudi Arabia standard) |
| Core material | Ordinary carbon steel (e.g. Q235B), no alloy optimization for seawater composition. | Low-alloy steel resistant to chloride ion corrosion (such as Q355C/S275NL grade), with trace seawater corrosion resistant elements (Cu, Cr, Ni) added. NOTE: Custom options for duplex stainless steel composite or coated linings are also available. |
| Thickness of anticorrosive coating | Ordinary 3PE (three-layer polyethylene) anticorrosive coating, with total thickness of 2.5mm-3.0mm, only applicable to fresh water or wet soil environment. | Thickened 3PE/3PP (polypropylene) coating, total thickness up to 4.2mm - 6.0mm. ✔ Base/surface course: above 2.5mm ✔ Tack coat:>0.5mm Designed for high salt mist, high tide and wet marine environment. |
| Inspection standard | SY/T5037 (Standard for Ordinary Fluid Transmission Pipeline) shall be implemented. Sampling inspection (not 100%) is adopted, with high tolerance to defects. | Implement API 5L PSL2 (Specification for Pipeline Steel Pipe) and GB/T 9711 (Transmission Pipe for Petroleum and Natural Gas Industry). ✔ Ultrasonic flaw detection for welds, 100% hydrostatic test for pipe body and 100% X-ray industrial television inspection. ✔ Record the data one by one to achieve two-way traceability. |
Salt spray test duration | Neutral Salt Spray Test (NSS): It is generally promised that red rust will not occur for 300-500 hours (for common environment). | Copper Accelerated Acetic Acid Continuous Salt Spray Test (CASS): ✔ ≥ No red rust on the surface after 1500 hours (corrosion resistance life is 3-5 times of that of conventional pipes). Endorsement: Corrosion resistance in accordance with Saudi SWCC Salt Spray Weathering Specification. |
One Words
When the common pipe starts to have pitting corrosion leakage in 3-5 years, the Cangluo sea water desalination special pipe still maintains the ex-factory anti-corrosion barrier. We do not manufacture "just up to standard" products, but only durable equipment "sufficient to cope with the harsh environment of the Red Sea in the Middle East".
Explanation of material difference: the corrosion rate of common Q235B in marine atmosphere is about 0.1-0.3mm/year, while the corrosion rate of special alloy steel for Cangluo can be reduced to below 0.05mm/year, and the 30-year design life can be easily achieved with thick coating.
Intuitive thickness: 6mm thickness approximately equal to the diameter of a dollar coin.
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