Raws li cov kev cai ntawm API SPEC 5L, cov kav hlau xa mus tau muab faib ua ob theem khoom, PLS1 thiab PLS2, thiab cov txheej txheem sib txawv tau teev tseg rau ob hom khoom no. Qhov sib txawv tseem ceeb yog piv nrog PLS1 thiab PLS2 qib, lub zog yuav tsum tau teev tseg rau carbon sib npaug, tawg toughness, siab tshaj tawm lub zog thiab siab tshaj tensile lub zog. Kev tswj hwm cov khoom tsis zoo xws li sulfur thiab phosphorus kuj tseem nruj dua: kev sim tsis muaj kev puas tsuaj ntawm cov kav dej seamless tau dhau los ua qhov yuav tsum tau ua. Cov ntsiab lus uas yuav tsum tau sau rau hauv warranty thiab traceability tom qab qhov kev xeem tiav tau dhau los ua qhov yuav tsum tau ua.
Nyob rau hauv ISO3183 roj thiab roj kis tau tus mob steel yeeb nkab qauv, steel kav muab faib ua peb ntu, A, B, thiab C, raws li qhov sib txawv ntawm qhov yuav tsum tau zoo, kuj hu ua A, B, thiab C peb theem yuav tsum tau.
Qhov sib txawv tseem ceeb yog nyob rau hauv ISO3183-1 A-theem tus qauv yuav tsum muaj, cov kev cai yooj yim zoo sib npaug rau cov uas tau teev tseg hauv API SPEC 5L yog tsim, thiab cov kev cai tseem ceeb no yog thoob ntiaj teb. Ntxiv rau cov kev cai yooj yim, ISO3183-2 Class B tus qauv kuj ntxiv cov kev xav tau ntawm kev ua kom tawv thiab tsis muaj kev puas tsuaj. Qee qhov kev siv tshwj xeeb, xws li acidic ib puag ncig, marine tej yam kev mob thiab tsis tshua muaj kub kub, muaj kev nruj heev rau kev ua tau zoo thiab kev ntsuam xyuas ntawm seamless steel kav, uas yog feem ntau cuam tshuam nyob rau hauv ISO3183-3 Class C tus qauv yuav tsum tau.
API 5L X70 Qib Steel Yeeb Nkab PSL2
