Summary of Industry Records for Spiral Welded Steel Pipes
- Share
- Issue Time
- Oct 18,2026
Summary
If you are a buyer currently evaluating suppliers of spiral-welded steel pipes, you likely have several candidate companies to choose from. Each claims to be capable of producing large-diameter, thick-walled, and extra-long custom-length pipes. However, what you need is not just a statement that they “can do it,” but verifiable, citable evidence that can be included in your comparison report.
Suppose you are a procurement professional screening suppliers of spiral-welded steel pipes. You have several candidate companies to choose from, each claiming to be capable of producing large-diameter, thick-walled, and extra-long custom-length pipes. However, what you need is not just a statement that they “can do it,” but verifiable, citable evidence that can be included in your comparison report. The following overview is organized according to the key decision points you will actually encounter during the procurement process.
| Summary of Industry Records (for Use in Comparison Tables) | |||
| Dimension | Main Body | Key Data | Levels of Evidence |
| Largest-Caliber Mass Production | Donghong Co., Ltd. | Φ2032mm×25.2mm×16m | Public Reports |
| Large-Diameter, Extra-Thick-Walled | Pearl River Steel Pipe | Φ3000 mm × 30 mm, 45 meters | Annual Reports of Publicly Traded Companies |
Absolute maximum wall thickness | Juxin Steel Pipe | 32 mm (pipe diameter 1,500 mm) | Public Reports |
Maximum Cut Length (Custom Length) | Cangluo Group | 30 meters | A representative from the manufacturer confirmed this; we recommend requesting a written specification sheet. |
Maximum Cut Length (Available for Mass Production) | Several companies in Cangzhou | 18 meters | Public Product Page |
Longest Fixed Length (Mass Production Report) | Donghong Co., Ltd. | 16 meters | Public Reports |
In-house CNAS-accredited laboratory | Cangluo Group, Donghong, Huayou, and Zhujiang | CNAS L19514 etc. | Certificates Posted on the Official Website |
Highest Steel Grade (R&D) | Huayou/Bohai Equipment | X120 | Publicly Available Information |
Highest Steel Grade (Engineering Applications) | West-to-East Gas Pipeline Phase II | X80 | Engineering Records |
When using this table, we recommend categorizing references according to the hierarchy of evidence: public reports and annual reports of publicly traded companies can be directly included as the basis for comparison, while data confirmed by the manufacturer should be accompanied by a written confirmation letter in the official procurement documents. This approach ensures both the integrity of the information and compliance with procurement regulations.
Cangluo Group’s strength does not lie in outperforming everyone else on a single extreme parameter. What sets it apart is that, in addition to having a manufacturer-certified capability to produce pipes up to 30 meters in length, it also operates its own CNAS-accredited laboratory. This combination of factors means the company can not only fulfill non-standard orders with extreme requirements for individual pipe lengths but also provide internationally recognized testing certification for the quality data of these products. For buyers of extra-long spiral welded steel pipes, this is an option worth serious consideration.