API 5L Gr.B vasega fa'ailoga e sau mai le API Spec 5L Fa'amatalaga mo Laina Paipa.Pipa Laina Fa'ata'atia e iai le fa'ailoga A ma le B. O togi malolosi e iai le fa'ailoga X ona soso'o ai lea ma le malosi fa'ai'u maualalo o le paipa u'amea, fuaina i kilopound i sikuea inisi (fa'apu'upu'u ksi), fa'ata'ita'iga X60 mo paipa o lo'o i ai le malosi maualalo o le 60. ksi.Va'ai le laulau o lo'o i lalo mo fa'ailoga masani o lo'o avanoa.
API 5L Gr.B e ufiufi WELDED maPIPA LELEItalafeagai mo le faʻaaogaina i le felauaiga o le kesi, vai, ma le suauʻu i mea uma e lua o le suauʻu ma kesi masani.
Laina Paipa Meatotino Faaletino
| API 5L Vasega | Malosi e maua min.(ksi) | Malosi Tetele min.(ksi) | Tuuina atu i le Tensile Ratio (max.) | Fa'aumiumi min.(%) |
| A | 30 | 48 | 0.93 | 28 |
| B | 35 | 60 | 0.93 | 23 |
| X42 | 42 | 60 | 0.93 | 23 |
| X46 | 46 | 63 | 0.93 | 22 |
| X52 | 52 | 66 | 0.93 | 21 |
| X56 | 56 | 71 | 0.93 | 19 |
| X60 | 60 | 75 | 0.93 | 19 |
| X65 | 65 | 77 | 0.93 | 18 |
| X70 | 70 | 82 | 0.93 | 17 |
| X80 | 80 | 90 | 0.93 | 16 |
Taimi meli: Feb-21-2020