1. Mechanical zog
X70 steel qibNws zoo dua li X52 hauv cov khoom siv kho tshuab. Lub zog tawm ntawm X52 yog nyob nruab nrab ntawm 360MPa thiab 530MPa (kwv yees 52000 psi), thaum lub zog qis tshaj ntawm X70 yog 70,000 psi (485 MPa), xws li ntawm 70,{12} } mus rau 90, 000 psi (485 mus rau 620 MPa), uas ua rau nws resistant rau yas deformation thiab muaj zog bearing muaj peev xwm, haum rau kev kub siab thiab siab load scenarios. Lub zog tensile ntawm X52 yog nyob nruab nrab ntawm 460MPa thiab 760MPa, thaum lub X70 yog nruab nrab ntawm 90, 000 thiab 110,000 psi (620 txog 760 MPa). Lub zog tensile siab tso cai rau X70 yeeb nkab phab ntsa kom nyias nyias, txo qhov hnyav thiab tus nqi. Nyob rau hauv cov nqe lus ntawm kev cuam tshuam toughness, X70 muaj qhov ua tau zoo ntawm qhov kub thiab txias vim qhov kev ua tau zoo thiab cov txheej txheem, uas tuaj yeem txo qhov kev pheej hmoo ntawm cov pob txha tawg, thaum X52 kuj tsis muaj zog.
2. Corrosion kuj thiab durability
X70 muaj kev tiv thaiv corrosion ntau dua, nws cov ntsiab lus alloy raug tswj, nws muaj zog tiv thaiv hydrogen-induced cracking (HIC), thiab muaj kev tiv thaiv zoo rau sab nraud corrosion xws li pitting, crevice corrosion thiab kev nyuaj siab corrosion cracking. Los ntawm kev xaiv alloy thiab txheej txheem kho saum npoo, nws tuaj yeem txuas lub neej thiab txo kev txij nkawm. X52 tsis yog corrosion resistant li X70. X70 lub zog siab ua rau cov yeeb nkab phab ntsa nyias, txo qhov kev pheej hmoo ntawm deformation thaum lub sij hawm thauj mus los thiab kev teeb tsa, thiab nws cov kev cuam tshuam toughness txo cov kev cuam tshuam ntawm kev sib tsoo, thiab nws muaj zog durability; X52 muaj cov yeeb nkab phab ntsa tuab, tsis zoo rau kev deformation thiab cuam tshuam, thiab tsis muaj zog.
3. Weldability thiab manufacturing xav txog
X70 muaj qhov zoo tshaj plaws weldability, tab sis piv nrog cov kav dej qis xws li X52, vuam X70 yuav tsum tau ceev faj ntxiv thiab cov txheej txheem tshwj xeeb, xws li kev tswj cov khoom siv hluav taws xob, preheating thiab tom qab vuam kub kho kom zoo thiab cov khoom siv hluav taws xob ntawm cov cua sov. cheeb tsam. Thaum tuav X70, cov tuam txhab lag luam yuav tsum ua raws li cov lus qhia nruj thiab cov txheej txheem tsim nyog, thiab siv cov vuam vuam zoo thiab tsis muaj kev puas tsuaj los xyuas kom zoo. X52 vuam yog qhov yooj yim, nrog cov txheej txheem xoob xoob, thiab qhov nyuaj ntawm cov txheej txheem tsim khoom thiab kev tswj hwm nruj yog qhov tsawg.
IV. Application versatility thiab nqi-zoo
X70 yog dav siv nyob rau hauv ntau yam kev lag luam roj thiab roj, tshwj xeeb tshaj yog kev thauj mus los ntev ntawm high-pressure, acidic, thiab corrosive kua, nrog rau cov cheeb tsam hnyav xws li dej tob, Arctic, thiab seismic zones. X52 feem ntau yog siv nyob rau hauv cov roj drilling, roj thiab roj tsheb thauj mus los, thiab refineries, thiab nws qhov kev hloov mus rau qhov chaw huab cua tsis zoo li X70. Nyob rau hauv cov nqe lus ntawm tus nqi-zoo, tus nqi pib ntawm X70 yog siab, tab sis nyob rau hauv lub sij hawm ntev, nws cov khoom thiab corrosion kuj yuav txo tau tus nqi txij nkawm, ncua lub neej, thiab txo downtime, thiab nws nyias-phab ntsa tsim txuag cov khoom thiab kev thauj mus los. cov nqi; X52 muaj tus nqi pib qis, tab sis qhov kev saib xyuas tom qab thiab hloov cov nqi yuav siab, thiab tag nrho cov nqi-zoo tsis zoo li X70.
API 5L X70 Qib Steel Yeeb Nkab PSL2
