Ko nga tohu tohu API 5L Gr.B ka ahu mai i te API Spec 5L Whakatakotoranga mo te Paipa Raina.Ko te Paipa Raina Paerewa he tohu tohu A me B. Ko nga tohu kaha ake ko te tohu X ka whai i te kaha tuku iti rawa o te paipa paipa, ka ine ki te kiropauna mo ia inihi tapawha (he ksi whakapoto), hei tauira, X60 mo te paipa he 60 te kaha tuku. ksi.Tirohia te ripanga i raro nei mo nga tohu paerewa e waatea ana.
Ko te API 5L Gr.B e hipoki ana i te WELDED me tePIPE KAUPAPApai mo te whakamahi i roto i te kawe hau, wai, me te hinu i roto i rua ahumahi hinu me te hau māori.
Raina Paipa Tikanga Tinana
| API 5L Kōeke | Te Kaha Tuku min.(ksi) | Te Kaha Toka min.(ksi) | Tukuna ki te Tauwehenga Tensile (mōrahi) | Te whakaroa 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 |
Wā tuku: Feb-21-2020