API 5Lni igipimo cyumurongo wumurongo wicyuma ukoreshwa mu gutwara peteroli, gaze gasanzwe, namazi. Igipimo gikubiyemo ibyiciro byinshi bitandukanye byibyuma, muri byo X42 na X52 ni ibyiciro bibiri bisanzwe. Itandukaniro nyamukuru hagati ya X42 na X52 nuburyo bwabo bwa mashini, cyane cyane butanga imbaraga nimbaraga zingana.

X42: Imbaraga ntoya yumusaruro wibyuma bya X42 ni 42.000 psi (290 MPa), kandi imbaraga zayo zingana kuva 60.000-75.000 psi (415-520 MPa). Umuyoboro wa X42 wo mu rwego rwa X42 ukoreshwa muri sisitemu yimiyoboro ifite ingufu ziciriritse hamwe nimbaraga zisabwa, bikwiranye no gutwara ibitangazamakuru nka peteroli, gaze gasanzwe, namazi.

X52: Imbaraga ntoya yumusaruro wibyuma bya X52 ni 52.000 psi (360 MPa), naho imbaraga zingana zingana na 66.000-95,000 psi (455-655 MPa). Ugereranije na X42, umuyoboro wa X52 wo mucyuma ufite imbaraga nyinshi kandi ukwiranye na sisitemu y'imiyoboro ifite umuvuduko mwinshi nibisabwa imbaraga.

Kubyerekeranye no gutanga imiterere,API 5L isanzweKugaragaza imiterere itandukanye yo gutanga imiyoboro idafite ibyuma hamwe nu miyoboro isudira:

Umuyoboro udafite ibyuma (N leta): N leta bivuga uburyo busanzwe bwo kuvura. Imiyoboro y'icyuma idafite uburinganire isanzwe mbere yo gutanga kugirango ihuze microstructure yumuringa wibyuma, bityo itezimbere imiterere yubukanishi no gukomera. Ubusanzwe birashobora gukuraho imihangayiko isigaye kandi bigatezimbere urwego rwicyuma.

Umuyoboro wo gusudira (M leta): M leta bivuga uburyo bwo gutunganya ibintu bya mitiweli yo gusudira nyuma yo gukora no gusudira. Binyuze mu buvuzi bwa termo-mashini, microstructure yumuyoboro wasuduwe irashimangirwa, imikorere yikibanza cyo gusudira iratera imbere, kandi imbaraga nubwizerwe bwumuyoboro wasuditswe mugihe cyo gukoreshwa birubahirizwa.

API 5L isanzweKugaragaza mu buryo burambuye imiterere yimiti, imiterere yubukanishi, uburyo bwo gukora, kugenzura no gupima ibisabwa byumuyoboro wibyuma. Ishyirwa mu bikorwa ry’ibipimo bitanga umutekano n’ubwizerwe bw’imiyoboro y’icyuma iyo itwara peteroli, gaze gasanzwe n’andi mazi. Guhitamo amanota akwiye yimiyoboro yicyuma hamwe nuburyo bwo gutanga bishobora guhuza ibyifuzo byimishinga itandukanye yubuhanga kandi bigakora imikorere ihamye ya sisitemu.