API 5L kab yeeb nkab specification, haum rau kev thauj mus los ntawm roj, roj thiab dej.
API 5L muab faib ua ob theem khoom: API 5L PSL1 thiab API 5L PSL2.
PSL1 yog tus qauv PSL2 uas muaj cov tshuaj ntxiv, cov khoom siv kho tshuab thiab cov kev ntsuas rau cov kab yeeb nkab zoo. Cov qib uas tau txais los ntawm API 5L specification yog A25, A, B thiab "X" qib X42, X46, X52, X56, X60, X65, X70, X80. Ob tus lej tom qab "X" qhia qhov tsawg kawg nkaus tawm lub zog hauv 000 psi rau cov yeeb nkab uas tsim nyob rau qib ntawd.
ASTM A106 (S / A 106) steel yeeb nkab yog cov qauv kev qhia tshwj xeeb rau seamless carbon steel yeeb nkab siv hauv qhov kub thiab txias kev pabcuam xws li kev tsim hluav taws xob. ASTM A106 steel yeeb nkab suav nrog peb qib: ASTM A106 Qib A, ASTM A106 Qib B, thiab ASTM A106 Qib C.
API 5L yog ib qho kev qhia tshwj xeeb uas tsim los rau cov kab yeeb nkab rau kev lag luam roj thiab roj; nws muaj ntau yam ntawm cov qib zog. Thaum lub zog qis dua qib A thiab B piv rau ASTM A106, lwm qib muaj zog dua (xws li X42, X56, X60, thiab lwm yam). Tsis tas li ntawd, kev saib xyuas tshwj xeeb yog them rau kev sim tawv thiab tawv rau qhov chaw qaub thiab siab dua / kub.
