API 5LKo te paerewa tēnei mō ngā paipa raina maitai e whakamahia ana hei kawe i te hinu, te hau māori, me te wai. E kapi ana te paerewa i ētahi momo maitai rerekē, ko te X42 me te X52 ngā momo e rua e kitea whānuitia ana. Ko te rerekētanga matua i waenga i te X42 me te X52 ko ō rāua āhuatanga hangarau, inā koa te kaha tuku me te kaha kume.

X42Ko te kaha whakaputa iti rawa o te paipa maitai X42 he 42,000 psi (290 MPa), ā, ko tōna kaha kume kei waenga i te 60,000-75,000 psi (415-520 MPa). Ko te paipa maitai kounga X42 e whakamahia whānuitia ana i roto i ngā pūnaha paipa me ngā whakaritenga pēhanga me te kaha reo, e tika ana mō te kawe i ngā mea pēnei i te hinu, te hau māori, me te wai.

X52Ko te kaha whakaputa iti rawa o te paipa maitai X52 he 52,000 psi (360 MPa), ā, ko te kaha kume kei waenga i te 66,000-95,000 psi (455-655 MPa). Ki te whakatauritea ki te X42, he kaha ake te paipa maitai kounga X52, ā, he pai mō ngā pūnaha paipa he nui ake te pēhanga me te kaha e hiahiatia ana.

Mō te āhua o te tukunga,Paerewa API 5Le tohu ana i ngā momo tūnga tuku mō ngā paipa maitai tuitui me ngā paipa whakarewa:

Paipa rino kore hononga (āhua N): Ko te āhua N e pā ana ki te āhua maimoatanga whakataurite. Ka whakatauritea ngā paipa rino kore hononga i mua i te tukunga hei whakataurite i te hanganga moroiti o te paipa rino, kia pai ake ai ōna āhuatanga miihini me tōna pakari. Mā te whakataurite ka taea te whakakore i te ahotea toenga me te whakapai ake i te pumau o te āhua o te paipa rino.

Paipa whakarewa (āhua M): Ko te āhua M e pā ana ki te maimoatanga wera-mīhini o te paipa whakarewa i muri i te hanganga me te whakarewa. Mā te maimoatanga wera-mīhini, ka arotauhia te hanganga moroiti o te paipa whakarewa, ka whakapai ake i te mahi o te wāhi whakarewa, ā, ka whakarite kia kaha me te pono o te paipa whakarewa i te wā e whakamahia ana.

Paerewa API 5LE whakamārama ana i ngā taipitopito o te hanganga matū, ngā āhuatanga miihini, ngā tikanga hanga, ngā whakaritenga tirotiro me te whakamātautau o ngā paipa rino. Mā te whakatinanatanga o te paerewa ka whakarite kia haumaru, kia pono hoki ngā paipa rino i te wā e kawe ana i te hinu, te hau māori me ētahi atu wai. Mā te whiriwhiri i ngā momo paipa rino tika me te tūnga tuku ka taea te whakatutuki i ngā hiahia motuhake o ngā kaupapa hangarau rerekē, ā, ka whakarite kia pumau te mahi a te pūnaha paipa.