Ntev: Raws li qhov koj xav tau. "
A789 unc unic s31803 thiab unspes ob qib ntawm ob chav stainless hlau uas tau siv dav hauv ntau cov ntawv thov. Cov txiv neej duplex s31803 Seamless kav yog paub rau lawv cov txiv neej ua hauj lwm zoo, muaj lub zog siab, thiab weldability thiab zoo weldability. A789 yog ib qho tshwj xeeb uas tau them seamless thiab welded tub ua los ntawm duplex steel stainless hlau.
Stainless hlau 316 yog cov Austenitic qib tsim nrog cov npib tsib xee thiab chromium cov ntsiab lus. Cov qib kawm no tseem muaj ib qho me me ntawm silicon, uas txhim kho cov oxidation tsis kam ntawm module. Qhov tseeb, stainless hlau 1.4401 feem ntau siv nyob rau hauv cov txheej txheem ntws muaj ntau yam li chlorides vim tias nws tsis kam hais cov tebchaw. Qhov sib ntxiv ntawm cov hlau molybdenum mus rau stainless hlau 316 raj alloys tsis tsuas yog txhim kho kev tiv thaiv mus rau chloride pitting tab sis kuj dav corrosion.