Zoo li cov hlau, cov hlau tsis muaj steel yog cov khoom siv hluav taws xob tsis zoo, nrog cov hluav taws xob qis dua li tooj liab. Tshwj xeeb, kev sib chwv hluav taws xob tiv thaiv (ECR) ntawm stainless hlau tshwm sim los ntawm cov ntaub ntawv siv hluav taws xob tuab thiab txwv nws cov khoom siv hluav taws xob zoo li yuav ua rau muaj cov txiaj ntsig qis dua ECR qhov tseem ceeb, thiab yog nyiam cov ntaub ntawv rau tej kev siv. Txawm li cas los xij, cov khoom sib txuas stainless hlau tau ua haujlwm nyob rau hauv cov xwm txheej uas ECR tsim cov qauv tsim qis thiab yuav tsum muaj kev tiv thaiv corrosion, piv txwv li hauv qhov kub thiab txias thiab oxidizing ib puag ncig.
Raws li nrog rau tag nrho lwm yam alloys, lub melting point ntawm stainless hlau yog qhia nyob rau hauv daim ntawv ntawm ib tug ntau yam ntawm kub, thiab tsis yog ib tug singular kub.Qhov no kub ntawm 1400 (2550) mus rau 1530 degree (2790 degree), nyob ntawm seb qhov tshwj xeeb. kev sib xws ntawm cov alloy nyob rau hauv nqe lus nug.
Martensitic thiab ferritic stainless hlau yog hlau nplaum. Ferritic steel muaj ferrite crystals, ib daim ntawv ntawm hlau nrog txog li 0.025 feem pua carbon. Vim nws cov qauv cubic crystalline, ferritic steel tsuas yog nqus tau me me ntawm cov pa roj carbon monoxide, uas muaj ib qho hlau hauv txhua lub ces kaum thiab lub hauv paus hlau atom. Lub hauv paus atom yog lub luag haujlwm rau nws cov khoom sib nqus. Cov qib uas tsis tshua muaj coercive teb tau tsim rau electro-valve siv hauv cov khoom siv hauv tsev thiab rau kev txhaj tshuaj hauv cov tshuab hluav taws xob sab hauv. Qee daim ntawv thov xav tau cov ntaub ntawv tsis sib nqus, xws li kev sib nqus resonance imaging. Annealed austenitic stainless steels feem ntau tsis yog sib nqus, tab sis kev ua hauj lwm hardening tuaj yeem ua rau txias-tsim austenitic stainless hlau me ntsis sib nqus. Qee zaum, yog tias austenitic steel yog khoov lossis txiav, cov hlau nplaum tshwm sim raws ntug ntawm cov hlau tsis muaj steel vim tias cov qauv siv lead ua rov ua dua nws tus kheej.[citation xav tau]
Sib nqus permeability ntawm qee qib austenitic stainless hlau tom qab annealing 2 teev ntawm 1050 degree
EN qib Sib nqus permeability, μ
1.4307 1.056
1.4301 1.011
1.4404 1.100
1.4435 1.000
Galling, qee zaum hu ua txias welding, yog ib daim ntawv ntawm cov nplaum hnyav hnyav, uas tuaj yeem tshwm sim thaum ob qhov chaw hlau nyob rau hauv kev sib txheeb ze rau ib leeg thiab nyob rau hauv lub siab hnyav. Austenitic stainless hlau fasteners yog tshwj xeeb tshaj yog raug rau xov galling, tab sis lwm yam alloys uas nws tus kheej tsim ib tug tiv thaiv oxide nto zaj duab xis, xws li txhuas thiab titanium, kuj raug rau. Nyob rau hauv kev sib cuag-quab yuam zawv zawg, qhov oxide no tuaj yeem deformed, tawg, thiab tshem tawm ntawm qhov chaw ntawm cov khoom, nthuav tawm cov hlau tsis muaj zog. Thaum ob qhov chaw yog cov khoom siv tib yam, cov khoom siv no tau yooj yim fuse. Kev sib cais ntawm ob qhov chaw tuaj yeem ua rau lub ntsej muag tearing thiab txawm tias ua tiav ntawm cov khoom siv hlau los yog fasteners.Galling tuaj yeem txo tau los ntawm kev siv cov khoom sib txawv (bronze tiv thaiv stainless hlau) lossis siv cov hlau tsis sib txawv (martensitic tiv thaiv austenitic). Tsis tas li ntawd, threaded pob qij txha yuav lubricated los muab ib zaj duab xis ntawm ob qhov chaw thiab tiv thaiv galling. Nitronic 60, ua los ntawm kev xaiv alloying nrog manganese, silicon, thiab nitrogen, tau ua kom pom qhov txo qis rau gall.
