Specification | OD | 6mm-660.4.4 hli |
WT | 1-80 hli | |
Ntev | 1-12 m |
Cov yeeb nkab tsim los rau ASTM106 Qib A lossis B tsis hloov pauv nrog API 5L. Cov kev xav tau rau API 5L X qib yog nruj dua; Cov qib dov tsis tau txais thiab tsis tso cai rov ua haujlwm dua. Tsis tas li ntawd, kev saib xyuas tshwj xeeb yog muab rau kev sim toughness thiab toughness rau cov kev pabcuam qaub thiab cov chav kawm siab dua & kub.
Lub zog Qib & DesulphurizationManganese sulphides yog ib txwm suav nrog hauv tag nrho cov manganese alloyed steels. Vim tias lawv nyiam sib cais ua rau txo qis zog, cov ntsiab lus sulfur yuav tsum tau txo qis. Peb qhia qhov siab tshaj 0.007%.
API 5L Kev Pabcuam & Kev Siv Roj, dej thiab roj tsheb thauj mus los - nyiam nyob rau hauv cov kav dej ntev vim qhov pheej yigLub koom haum American Petroleum specification API 5L hais txog seamless thiab welded steel kab yeeb nkab rau cov kav dej thauj mus los hauv kev lag luam roj av thiab kev lag luam. API 5L yog tsim rau kev xa roj, dej, thiab roj.
Kev qhia tshwj xeeb rau API 5L ua raws li Lub Koom Haum Thoob Ntiaj Teb rau Standardization ISO 3183, kev tsim cov raj xa dej hauv cov khoom siv, cov khoom siv thiab cov qauv sab nrauv rau cov roj av, roj av, thiab kev lag luam petrochemical. Thaum sau cov qauv, pawg kws tshaj lij tau lees paub tias muaj ob theem ntawm Cov Khoom Qhia Tshwj Xeeb (PSL) ntawm cov txheej txheem kev cai thiab yog li tsim PSL 1 thiab PSL 2. PSL 1 yog tus qauv zoo rau kab yeeb nkab uas PSL 2 muaj cov tshuaj ntxiv, cov khoom siv kho tshuab. , thiab cov kev cai xeem.
Cov qhab nia them los ntawm qhov tshwj xeeb no yog A25, A, B thiab "X" Qib X42, X46, X52, X56, X60, X65, X70, thiab X80. Tus lej ob tus lej tom qab "X" qhia qhov tsawg kawg nkaus Yield Strength (hauv 000's psi) ntawm cov yeeb nkab uas tsim rau qib no.
Qib | Tshuaj muaj pes tsawg leeg | Yield zog | Tensile zog | Yield rau Tensile | Elongation | |||||||
C | Si | Mn | P | S | V | Nb | Ti | min. (KSI) | min. (KSI) | Qhov ratio (max) | % | |
API 5L X52 | 0.16 | 0.45 | 1.65 | 0.020 | 0.010 | 0.07 | 0.05 | 0.04 | 52 | 66 | 0.93 | 21 |
API 5L X56 | 0.16 | 0.45 | 1.65 | 0.020 | 0.010 | 0.07 | 0.05 | 0.04 | 56 | 71 | 0.93 | 19 |
API 5L X60 | 0.16 | 0.45 | 1.65 | 0.020 | 0.010 | 0.08 | 0.05 | 0.04 | 60 | 75 | 0.93 | 19 |
API 5L X65 | 0.16 | 0.45 | 1.65 | 0.020 | 0.010 | 0.09 | 0.05 | 0.06 | 65 | 77 | 0.93 | 18 |
API 5L X70 | 0.17 | 0.45 | 1.75 | 0.020 | 0.010 | 0.10 | 0.05 | 0.06 | 70 | 82 | 0.93 | 17 |