PSL is the brief name of item conventional degree. The item basic degree of line pipeline have PSL2, likewise we might claim the high quality typical split in PSL1 as well as PSL2. PSL2 is greater than PSL1, not just the evaluation requirement is various, additionally the chemical residential property, mechanical toughness requirements are various. So when location the order for the API 5L line pipeline, there ought to be mentioned plainly for the dimension, qualities these basic requirements, additionally need to make clear the manufacturing conventional degree, PSL2. PSL2 is extra purely on the chemical homes, tensile toughness, non-destructive examination, and also effect examination. API 5L PSL2 line pipeline will do the hydraulic examination for every solitary pipeline, as well as in the API conventional requirements not allow to have Non-destructive examination change the hydraulic examination, this is additionally a huge distinction in between Chinese requirement as well as API 5L criterion. For API 5L PSL2 steel line pipeline, other than Quality X80, all the various other qualities of API 5L line pipeline needed the influence examination at temperature level of 0 ℃. The ordinary worth of Akv: longitudinal instructions 41J, transverse instructions 27J.
For API 5L Quality X80 PSL2 line pipeline, at 0 ℃ for all the dimension, influence examination the Akv ordinary worth: longitudinal instructions 101J, transverse instructions 68J Chemical structure as well as mechanical toughness is additionally various in between API 5L PSL2 line pipeline. For the thorough spec as listed below. API 5L PSL2 have limitations with the carbon comparable material, where for the carbon mass portion above 0.12%, and also equivalent or much less compared to 0.12%. Various CEQ will be used. PSL-2 consists of added screening need, more stringent chemical physicals, in addition to various ceiling limitations of mechanical homes, as well as call for Chirpy influence screening problems. PSL-2 consist of CVN screening, non-destructive examination of smooth items, accreditation to SR15, and also necessary traceability throughout the whole manufacturing procedure. A Lot of FERC, DOT, or FEMSA lines need PSL-2, implying these sorts of demands are a need to when providing pipeline for pipes that are managed by any one of these regulating bodies.