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The SY/T5040 standard is mainly applied to the production and inspection of spiral welded steel pipes for piles. This type of steel pipe plays an important role in multiple fields due to its excellent mechanical properties and good welding performance.
keyword Spiral welded steel pipes for SY/T 5040 piles Category Steel pipe pile Related products Get a quoteSY/T 5040 Standard and Application Fields for Spiral Welded Steel Pipes for Piles
The SY/T5040 standard is mainly applied to the production and inspection of spiral welded steel pipes for piles. This type of steel pipe plays an important role in multiple fields due to its excellent mechanical properties and good welding performance.
| Deviation of outer diameter of steel pipe (in millimeters) | ||
| D | Deviation | |
| Tube body | pipe end | |
| ≤813 | ±1.0%D | ±0.5%D，maximum±3.2 |
| ＞813 | ±1.0%D | ±0.4%D，maximum±4.0 |
| Note: The pipe end refers to the range of 100mm from the end face of the steel pipe. | ||
| Deviation of steel pipe wall thickness (in millimeters). | ||
| t | Deviation | |
| ≤15 | ±0.1t | |
| ＞15 | ±1.5 | |
application area
Pile driving engineering: As one of the main building materials, it is used for various types of building pile driving projects.
Fluid transportation: suitable for transporting various fluids such as water, oil, gas, etc.
Chemical equipment: used in the chemical industry to transport chemical media.
Ocean engineering: used for the construction and maintenance of ocean platforms.
Main materials and specifications
Common materials
Q355B/Q355D/API 5L PSL1/API 5L PSL2/GR.B/L245/L360/L415, etc
Common specifications
Caliber range: DN300 to DN3620
Wall thickness range: 8mm to 60mm
Production process and characteristics
Production process
Spiral welded steel pipes for SY/T5040 piles are made using double-sided automatic submerged arc welding or single-sided welding method. This production process ensures the strength and corrosion resistance of steel pipes, enabling them to meet the needs of different projects.
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