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
Delivery Time: 7-45 Days
Application: Seawater transmission pipeline, corrosion resistant pipeline.
Lifetime： 50 year+
Making Process: SSAW
API 5L
CNAS
CE
ISO9001
Why Standard Pipes Fail in 3-5 Years? Our Solution for High Cl⁻ Environment
The selection of seawater desalination pipeline is very important for the smooth and long-term implementation of the whole project. The selection of ordinary spiral welding pipe may lead to pipeline corrosion leakage and increase the pipeline maintenance cost. Why can't ordinary pipelines be used for seawater desalination projects?
| 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. | Select the steel coil raw materials added with chloride ion corrosion resistant elements (Cu, Cr, Ni) from HBIS and Baowu Group, with corrosion rate of<0.05mm/year (0.1-0.3mm/year for common Q235B). |
| Thickened 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. |
Project Proven in the Middle East – Partner of Saudi Water Authority (SWCC)
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.
"The quality of the Cangzhou spiral steel pipe is excellent and the supply is guaranteed."— Site Manager, Shatrays Water Pipeline Project, Saudi Arabia.
Technical Comparison: Standard Pipe vs. Cangluo Desalination Pipe
| Characteristic | Ordinary fluid pipe (industry standard) | Canglo seawater desalination special pipe |
| Base material | Q235B， No chloride ion resistant design | Q355C/S275NL + Cu, Cr, Ni |
| Total coating thickness | 2.5-3.0mm (3PE) | 4.2-6.0mm (thickened 3PE/3PP) |
| Testing Standard | SY/T5037 (Sampling Inspection) | API 5L PSL2 (100% ultrasonic, hydraulic, X-ray) |
Salt spray test | NSS 300-500 hour red rust | CASS ≥ 1500 hours (no red rust) |
Global Delivery System: From Cangzhou Plant to Red Sea Port
Export performance:
Covering over 50 countries, including demanding projects such as municipal water supply in Saudi Arabia and Canada.
Logistics scheme
Straw cushion layer+soft isolation protection, 18 meter steel pipe with zero damage during sea transportation.
Customization
Support non-standard SSAW customization, produce according to drawings, and deliver within 7 days at the fastest.
Advantage Of Differentiation
Raw Material Guarantee: 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.
Better technology: For over 30 years, Cangzhou Spiral Steel Pipe Group has dedicated itself to perfecting the craft of spiral welded pipe manufacturing. Through continuous refinement of welding processes, material selection, and anti-corrosion technology, we pursue excellence in every millimeter of steel pipe. This artisan spirit drives us to constantly improve quality control and production precision, ensuring that each pipe leaving our factory meets the most demanding standards for seawater desalination and other critical infrastructure projects worldwide.
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.
Get a Quote for Your Desalination Project in 24 Hours
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.
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