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API5LX65 yog cov yeeb nkab steel feem ntau siv hauv cov roj thiab cov kav xa hluav taws xob. Thaum nws poob rau hauv qeb ntawm carbon steel nyob rau hauv cov nqe lus ntawm kev faib khoom, nws muaj cov kab ntawm cov ntsiab lus alloying los txhim kho nws lub zog. Cov ntsiab lus carbon ntawm cov hlau no feem ntau yog nruab nrab ntawm 0.1% thiab 0.25%, thiab nws pom zoo weldability thiab formability.
Cov yam ntxwv ntawm cov khoom siv ntawm X65 pipeline steel yeeb nkab feem ntau suav nrog cov hauv qab no:
- Lub zog siab: Lub zog tensile ntawm X65 steel yog 535-760MPa, uas yog cov hlau muaj zog.
- Phab ntsa tuab ntawm X65 pipeline steel yeeb nkab yog 0.3 ~ 0.8mm thiab ua tiav los ntawm cov cuab yeej tshwj xeeb tom qab annealing; zoo tib yam carbon structural steel yog tuab txaus kom 0.2 ~ 8mm thiab tom qab ntawd pickled kom tshem tawm oxide nplai thiab ces txias - dov (tus nqi yog siab dua qhov kub - dov) khi).
- API 5L X65 Yeeb Nkab kuj tsim nyog rau kev tsim kho thiab tu cov kav dej xa hluav taws xob. Natural gas pipelines yuav tsum muaj kev tiv thaiv corrosion thiab kev nyab xeeb. Vim nws qhov zoo corrosion kuj, API 5L X65 Seamless Line yeeb nkab kuj yog siv nyob rau hauv kev tsim kho ntawm submarine pipelines. Submarine pipelines yuav tsum tiv taus corrosion hnyav los ntawm seawater thiab submarine ib puag ncig. Qhov kev ua tau zoo ntawm X65 steel kav tuaj yeem txuas lub neej kev pab cuam ntawm cov kav dej.
X65 khoom sib npaug
| ASTM API 5L Cov Lus Qhia | Specification rau kab yeeb nkab | |
|---|---|---|
| Khoom Qib | PSL1 | l450x65 ua |
| Khoom Qib | PSL2 | L450Q or X65Q L450M or X65M |
API 5L X65 carbon yeeb nkab yield zog
| Qib | Yield zog | Tensile zog | Yield rau Tensile | Elongation |
|---|---|---|---|---|
| min. (KSI) | min. (KSI) | Qhov ratio (max) | % | |
| API 5L X65 Tube | 65 | 77 | 0.93 | 18 |
API 5L X65 Seamless Pipe Suppliers thiab API 5L X65 PSL2 yeeb nkab
| API 5L GrB X65 PSL 1 Mechanical Properties | |||
|---|---|---|---|
| Qib | Yield zog Mpa | Tensile zog Mpa | Elongation |
| B | 245 | 415 | c |
| X65 | 450 | 535 | c |
X65 seamless steel kavnruj me ntsis raws li API 5L cov qauv (steel kav rau pipeline tsheb thauj mus los hauv kev lag luam roj thiab roj) thiab kuj ua tau raws li ISO 3183 cov qauv rau marine engineering kav. Nws cov txheej txheem ntau lawm suav nrog:
Bill smelting: Hluav taws xob rauv / hloov smelting + ladle refining kom meej meej tswj cov tshuaj muaj pes tsawg leeg;
Piercing thiab sib sau: Cov txheej txheem tho kub ua rau cov kav dej ntxhib, kom ntseeg tau qhov tseeb ntawm geometric;
quenching thiab tempering: Online quenching + tempering kho optimizes grain qauv thiab txhim kho tag nrho cov neeg kho tshuab zog;
Tsis yog-kev kuaj kev puas tsuaj: Kev kuaj ultrasonic + eddy kev sim tam sim no ntawm tag nrho cov yeeb nkab lub cev kom tsis muaj qhov tsis xws luag;
Kev kho deg: Txhaj tshuaj tua kab mob ntawm cov phab ntsa sab hauv thiab sab nrauv + tiv thaiv -corrosion txheej kom hloov mus rau corrosive marine ib puag ncig.
API 5L PSL1 / PSL2 Kab Yeeb
GNEE Tus nqi ntxiv -cov kev pabcuam ntxiv
UT (Ultrasonic kuaj)
AR (Raws li Kub Rolled nkaus xwb)
TMCP (Thermal Mechanical Control Processing)
N (Normalized)
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Cim npe nrov: api 5l qib x65 yeeb nkab, Tuam Tshoj api 5l qib x65 yeeb nkab manufacturers, lwm tus neeg, Hoobkas
