Helically welded steel pipes are a specific type of pipe used in a variety of industrial applications due to their durability and strength. The manufacturing of these pipes involves spirally winding a steel strip and continuously welding the joint to ensure structural integrity. This helical welding process offers significant advantages, including uniform stress distribution and increased resistance to internal and external pressure. Helically welded pipes are frequently used in fluid and gas transportation, as well as in construction and infrastructure, due to their ability to withstand difficult operating conditions and provide reliable long-term performance.
Standards and Applications
Helically welded steel pipes are regulated by international standards that ensure their quality and compliance with the specific requirements of industrial applications. The most relevant standards include:
API 5L: The American Petroleum Institute (API) standard specifies requirements for steel pipes intended for the transportation of petroleum products and natural gas, covering both welded and seamless pipes, with different specifications for various operating conditions.
ASTM A252: This American standard refers to helically welded steel pipes used in foundation construction, as well as in underground support structures, specifying requirements related to material and quality tests.
EN 10219: The European standard regulates welded steel pipes, including those with helical welds, used in steel structural construction, specifying requirements for material, dimensions, and performance.
ISO 3183: This international standard applies to steel pipes for the transportation of petroleum products and gases, including helically welded ones, providing specifications for materials, dimensions, and testing methods.
DIN 1629: The German standard for welded steel pipes, including helical ones, specifies requirements for materials and tests for pipes intended for pressure applications.
These standards are essential to guarantee the performance and safety of pipes under different operating conditions, ensuring that they are manufactured according to the technical specifications required for their intended uses.
Dimensions
| 6.3 | 7.1 | 8 | 10 | 12 | 12.5 | |
| 335.6 | X | X | ||||
| 406.4 | X | X | X | X | ||
| 457.2 | X | |||||
| 508.0 | X | X | X | X | ||
| 559.0 | X | |||||
| 609.6 | X | X | ||||
| 660.6 | X | |||||
| 711.7 | X | X | ||||
| 762.7 | X | |||||
| 812.8 | X | X | X | |||
| 863.8 | X | |||||
| 914.9 | X | |||||
| 965.9 | X | |||||
| 1016.0 | X | X | ||||
| 1067.0 | X | X | ||||
| 1118.0 | X | X | ||||
| 1168.0 | X | |||||
| 1219.0 | X | X | ||||
| 1321.0 | X | |||||
| 1372.0 | X | |||||
| 1422.0 | X | |||||
| 1524.0 | X | |||||
| 1626.0 | X |
