The two grades can have overlapping chemistry and strength ranges, but their intended service, manufacturing routes, testing and ordering requirements differ.
An enquiry must identify the required specification, product specification level for API 5L, dimensions, construction and service conditions.
Key points
- A106: seamless high-temperature pressure pipe
- API 5L: pipeline transportation pipe
- API 5L requires PSL1 or PSL2 selection
- They are not automatically interchangeable