What does API 5L mean?
The American Petroleum Institute specification API 5L covers seamless and welded steel line pipe. This is steel pipe for pipeline transportation systems in the petroleum and natural gas industries. The two digit number following the “X” indicates the Minimum Yield Strength (in 000’s psi) of pipe produced to this grade.
Is Grade B a X42?
API 5L X42 pipe also called L290 pipe (by ISO 3183), named by minimum yield strength 42100 Psi or 290 Mpa. It’s a higher grade than Grade B where API 5L has various grades up to X100, so x42 pipe is an low-medium level, and it requires large quantities in most of pipelines for oil and gas transmissions.
What is PSL steel?
PSL stands for Product Specification Levels. These specs cover seamless and welded steel line pipe from grades X42 through X80.
What is X65 pipe?
API 5L X65 pipe is also called ISO 3183 L450 pipe, it is a high level grade pipe in API 5L (ISO 3183) specifications, used for oil and gas transmissions. The reason we call it X65 pipe or L415 pipe is because it’s minimum yield strength required in 65000 Ksi or 450 Mpa.