API 5L cov kav dej tuaj yeem tuaj yeem muaj ntau yam tshwj xeeb thiab qib, suav nrog SSAW (kauv submerged arc welded) kav. Cov kav dej no yog tsim los rau kev xa cov kua dej thiab feem ntau siv hauv kev lag luam roj thiab roj.
SSAW cov kav dej muaj cov txheej txheem sib txuas tshwj xeeb thiab tuaj yeem tsim ntau qhov sib txawv thiab tuab raws li qhov tshwj xeeb xav tau ntawm cov neeg siv khoom. Qhov tshwj xeeb ntawm API 5L kav dej rau SSAW kav yuav suav nrog txoj kab uas hla ntawm cov yeeb nkab, qhov ntev ntawm cov yeeb nkab, qhov hnyav ntawm ib chav tsev ntev, thiab qib steel.
Cov qib steel yog ib qho tseem ceeb ntawm API 5L kav dej rau SSAW kav, vim nws txiav txim siab qhov zoo thiab kev ua tau zoo ntawm cov yeeb nkab nyob rau hauv cov nqe lus ntawm lub zog, durability, thiab corrosion kuj. Cov qib steel ntau tshaj plaws rau SSAW kav yog API 5L Qib B, X42, X46, X52, X56, X60, X65, X70, thiab X80.
Hauv kev xaus, API 5L cov kav dej tuaj yeem yog SSAW cov kav dej nrog cov kev qhia tshwj xeeb thiab qib sib txawv, uas yog tsim los rau cov kev siv tshwj xeeb hauv kev lag luam roj thiab roj. Kev siv cov ntaub ntawv zoo thiab cov txheej txheem tsim khoom nruj ua kom cov kav dej no ua tau raws li cov qauv zoo tshaj plaws, kev nyab xeeb, thiab kev ua haujlwm zoo.
