Based on the search results, GB/T 13793 is a Chinese National Standard that specifically applies to straight seam electric resistance welded (ERW) pipes for structural and general engineering purposes, not to Spiral Submerged Arc Welded (SSAW) pipes .
Here is the detailed specification for GB/T 13793 and its relationship to spiral welded pipes.
📋 GB/T 13793 Standard Overview
| Attribute | Description |
|---|---|
| Standard Number | GB/T 13793 (full title: "Straight seam electric resistance welded steel pipes") |
| Latest Version | GB/T 13793-2016 |
| Previous Version | GB/T 13793-2008 (still referenced in some industry literature) |
| Scope | Specifies dimensions, technical requirements, testing methods, inspection rules, packaging, marking, and quality certificates for straight seam electric resistance welded (ERW) steel pipes |
| Primary Application | General structural use, mechanical engineering, and ordinary structural purposes |
| Pipe Type | Longitudinal/straight seam electric welded pipes – NOT spiral welded |
🔍 Key Points to Understand
Not Applicable to Spiral Welded Pipes: GB/T 13793 explicitly applies to straight seam (longitudinal) electric resistance welded (ERW) pipes, where the weld runs parallel to the pipe axis . Spiral submerged arc welded pipes have a different manufacturing process with the weld running helically.
Manufacturer Classification: Major steel pipe manufacturers correctly classify GB/T 13793 under "Steel Pipe for Ordinary Structure" for ERW products, while SSAW pipes are listed under separate standards such as GB/T 3091, SY/T 5037, API 5L, and EN 10217 for fluid service and pressure applications .
Historical Context: The 2008 version of GB/T 13793 was referenced for "公制电焊钢管" (metric ERW steel pipes) and "电焊薄壁管" (thin-wall ERW pipes) for structural use .
📊 Correct Standards for Spiral Submerged Arc Welded Pipes
For spiral submerged arc welded (SSAW/HSAW) pipes, the following standards are applicable instead of GB/T 13793:
| Standard | Application |
|---|---|
| GB/T 3091 | Low-pressure fluid transmission (water, gas, air, steam) |
| SY/T 5037 | Petroleum and natural gas industry standard for low-pressure fluid pipelines |
| API 5L | Oil and gas transmission pipelines |
| GB/T 9711 | Petroleum and natural gas industries pipeline transportation systems |
| EN 10217-2 / -5 | European standards for pressure purposes with elevated temperature properties |
| ASTM A53 | General piping applications |
| ASTM A252 | Pipe piles for foundation applications |
| EN 10219 | Structural hollow sections |
📝 Summary
GB/T 13793 is not applicable to spiral submerged arc welded pipes. It is specifically designed for straight seam electric resistance welded (ERW) pipes used in general structural and ordinary engineering applications. For SSAW pipes, you should reference appropriate standards such as GB/T 3091 for low-pressure fluid service, SY/T 5037 for petroleum industry applications, or API 5L for oil and gas transmission pipelines depending on your specific requirements .
When specifying spiral welded pipes, ensure you select the correct standard based on your intended application (fluid transmission, structural, pressure purposes, piling, etc.) rather than GB/T 13793.
