API 5L PSL1 a me PSL2 ʻokoʻa no ka paipu laina kila

API 5L laina paipu (Seamless a welded paipu) o na papa a pau i PSL1 a me PSL2 elua kiko'ī huahana, he okoa ia ma ka haku mele 'ana, hana hana, mechanical ikaika, wela wela, ho'āʻo mooolelo, traceability etc.

ʻOi aku ka kiʻekiʻe o nā paipu laina ma API 5L PSL2 ma mua o PSL1

a. ʻO PSL ka inoa pōkole o ka pae maʻamau o ka huahana. ʻO ka pae maʻamau o ka paipu laina he PSL1 a me PSL2, hiki iā mākou ke ʻōlelo i ka maʻamau maʻamau i māhele ʻia i PSL1 a me PSL2. ʻOi aku ka kiʻekiʻe o PSL2 ma mua o PSL1, ʻaʻole ʻokoʻa ke kūlana nānā wale nō, ʻokoʻa hoʻi ka waiwai kemika, ʻokoʻa nā kūlana ikaika mechanical. No laila, i ka wā e kau ai i ke kauoha no ka paipu laina API 5L, pono e hōʻike maopopo ʻia no ka nui, nā māka i kēia mau kikoʻī maʻamau, pono e wehewehe i ka pae hana maʻamau, PSL1 a i ʻole PSL2.
ʻOi aku ka koʻikoʻi o PSL2 ma mua o PSL1 ma nā waiwai kemika, ka ikaika tensile, ka hoʻāʻo ʻole luku, a me ka hoʻāʻo hopena.

Nā ʻano hoʻokolohua hopena like ʻole no PSL1 a me PSL2

b. ʻAʻole koi ʻia ʻo API 5L PSL1 paipu laina kila e hana i ka hoʻāʻo hopena.
No ka paipu laina kila API 5L PSL2, koe wale nō ka Papa X80, pono nā māka ʻē aʻe a pau o ka paipu laina API 5L i ka hoʻāʻo ʻana i ka hopena ma ka mahana o 0 ℃. Ka awelika waiwai o Akv: longitudinal direction≥41J, tranverse direction≥27J.
No ka API 5L Grade X80 PSL2 laina paipu, ma 0 ℃ no ka nui a pau, e ho'āʻo i ka hopena i ka waiwai awelika Akv: longitudinal direction≥101J, tranverse direction≥68J.

Ho'āʻo hydraulic ʻokoʻa no ka paipu laina API 5L ma PSL1 a me PSL2

c. No ka API 5L PSL2 laina paipu e hana i ka hydraulic ho'āʻo no kēlā me kēia paipu hoʻokahi, a ma ka API maʻamau kikoʻī ʻaʻole e ʻae i ka hoʻāʻo Non-destructive e hoʻololi i ka hoʻāʻo hydraulic, he ʻokoʻa nui kēia ma waena o ka maʻamau Kina a me ka maʻamau API 5L. No ka PSL1 ʻaʻole koi ʻia ka hoʻāʻo Non-destructive, no ka PSL2 e hana i ka hoʻāʻo Non-destructive no kēlā me kēia paipu hoʻokahi.

ʻOkoʻa hoʻohui kemika no ka paipu laina API 5L ma PSL1 a me PSL2

d. He ʻokoʻa ka hoʻohui ʻana a me ka ikaika mechanical ma waena o ka paipu laina API 5L PSL1 a me ka paipu laina API 5L PSL2. No ka kikoʻī kikoʻī e like me lalo. Aia ka API 5L PSL2 i nā kapu me ka maʻiʻo like kalapona, kahi no ka hapa nui kalapona i ʻoi aku ma mua o 0.12%, a like a i ʻole ka liʻiliʻi ma mua o 0.12%. E hoʻohana ʻia nā CEQ like ʻole. No ka paipu laina ma PSL2 ikaika tensile loaʻa nā palena kiʻekiʻe.