API 5L PSL1 me PSL2 Rerekētanga mo te Paipa Raina Raina
Ko nga paipa raina i roto i te API 5L PSL2 he teitei ake i te PSL1
a. Ko te PSL te ingoa poto o te taumata paerewa hua. Ko te taumata paerewa hua o te paipa raina he PSL1 me PSL2, ka taea hoki te kii ko te paerewa kounga kua wehea ki te PSL1 me te PSL2. Ko te PSL2 he teitei ake i te PSL1, ehara i te mea he rereke te paerewa tirotiro, he rereke ano nga taonga matū, he rereke nga paerewa kaha miihini. Na ka tuu i te ota mo te API 5L paipa raina, me kii marama mo te rahi, tohu enei tohu whanui, me whakamarama ano hoki te taumata paerewa whakaputa, PSL1, PSL2 ranei.
Ko te PSL2 he kaha ake i te PSL1 mo nga ahuatanga matū, te kaha o te kaha, te whakamatautau kore-whakangaro, me te whakamatautau paanga.
Nga tikanga whakamatautau paanga rereke mo PSL1 me PSL2
b. API 5L PSL1 paipa raina maitai kore e hiahiatia ki te mahi i te whakamātautau pānga.
Mo te API 5L PSL2 putorino raina maitai, haunga te Koeke X80, ko era atu reanga katoa o te paipa raina API 5L e hiahia ana kia whakamatauria te paanga i te pāmahana o te 0 ℃. Ko te uara toharite o Akv: te ahunga roa≥41J, te ahunga whakawhiti≥27J.
Mo te API 5L Grade X80 PSL2 paipa raina, i te 0 ℃ mo te rahi katoa, whakamatauria te paanga o te uara toharite Akv: te ahunga roa≥101J, te ahunga whakawhiti≥68J.
He rereke te whakamatautau waipēhi mo te paipa raina API 5L i PSL1 me PSL2
c. Mo te API 5L PSL2 paipa raina ka mahi i te whakamatautau waipēhi mo ia putorino kotahi, a i roto i te tohu paerewa API kaore e whakaaetia kia whakakapihia te whakamatautau kore-whakangaro i te whakamatautau waipēhi, he rereke ano tenei i waenga i te paerewa Hainamana me te paerewa API 5L. Mo te PSL1 kaore e hiahiatia he whakamatautau Kore-whakangaro, mo te PSL2 me mahi te whakamatautau Kore-whakangaro mo ia paipa kotahi.
He rereke te hanganga matū mo te paipa raina API 5L i PSL1 me PSL2
d. He rereke ano te hanganga matū me te kaha miihini i waenga i te paipa raina API 5L PSL1 me te paipa raina API 5L PSL2. Mo nga korero taipitopito penei i raro nei. API 5L PSL2 he here ki te ihirangi waro ōrite, i reira mo te hautau papatipu waro nui ake i te 0.12%, me te rite iti iho ranei i te 0.12%. Ka whakamahia nga CEQ rereke. No te paipa raina i roto i te PSL2 kaha tensile whai rohe mōrahi.
Wā tuku: Tihema-29-2021