Api 5l Grade X65 Seamless Pipe Spiral Welded Steel Pipe Steel Piles
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.
API 5L has grades from B to X70 in common use pipelines, so Grade X65 pipe is one of the premium class material.Same with other API 5L pipe, X65 pipe has two product specification levels of PSL1 and PSL2, and in some cases required for sour service use.
| API 5L Grade X65, X65M, X65Q | 1/2″ NB – 100″ NB |
|---|---|
| Length | Double Random & Required Length, Single Random & Custom Size Available |
| Coating | Anti-Corrosion Oil, Galvanised Finish, Black Painting, Finish as per Customer Requirements |
| Schedule | SCH 20, SCH 160, SCH XS, SCH 40, SCH 80, SCH XXS And All Other Schedules For Tubes |
| Pipes End | Plain End, Beveled End, Treaded Protected With Plastic Caps |
| Type | Seamless, Welded, LSAW, ERW & EFW |
| V | Nb | Ti | C | Si | Mn | P | S |
| 0.09 | 0.05 | 0.06 | 0.16 | 0.45 | 1.65 | 0.020 | 0.010 |
API 5L X65 sour service
API 5L X65 PSL2 sour service pipe (X65QS/MS, L415QS/MS), C maximum is 0.10, Mn ≤ 1.45, Si ≤ 0.45, P ≤ 0.020, S ≤ 0.002, V ≤ 0.10, Nb ≤ 0.08, Ti ≤ 0.06, CEPcm ≤ 0.22. Sour service line pipe requires a strictly control on the chemical composition. So to protect pipe from corrosive environments like H2S, low carbon and low CEPcm value will reduce the martensite which sensitive to H bubble, so to improve the corrosive resistance to H2S. Moreover, P and S also should be less than normal line pipes. Out of these, the mechanical strength is the same with API 5L X65 PSL2 steel line pipes.
