Muaj qhov yuav tsum ua raws li ntawm qhov kev tawm tsam, yog li cov tshuaj lom neeg ntawm cov khoom siv raw yuav tsum xyuas kom meej tias cov resistivity ntawm cov hlau tiav tau tsim nyog. Cov txheej txheem kev kho saum npoo, kos duab thiab txheej txheem kev kho cua sov ntawm cov hlau xaim yog zoo li cov txheej txheem dav dav qis cov pa roj carbon hlau, tab sis yuav tsum muaj txheej zinc ntau dua, thiab qee qhov kev kho mob passivation yuav tsum tau tom qab galvanizing, uas yog, galvanized steel hlau raus hauv chromic acid thiab sulfuric acid. Hauv cov tshuaj sib tov ntawm nitric acid thiab nitric acid, passivation tiv thaiv zaj duab xis nrog iridescent lossis lub teeb daj, lub teeb ntsuab, lub teeb liab thiab lwm cov xim sib xyaw yog tsim nyob rau saum npoo ntawm zinc txheej ntxiv los txhim kho qhov kev txhim kho corrosion ntawm cov hlau tsis xeb. Cov hlau hlau yog annealed ua ntej galvanizing. Lub tiav lawm galvanized tsawg carbon hlau xaim rau armored cables nrog lub zog tensile ntawm 345 rau 490 MPa kuj tseem yuav tsum tau muaj cov tuab zinc txheej, thiab ib co xav tau passivation tom qab galvanizing.
Nws yog ua los ntawm cov qauv hlau ua thiab xa hauv lub zog lossis lub xeev muag. Lub zog tensile ntawm lub zog steel hlau yog nruab nrab ntawm 540 txog 980 MPa; Lub zog tensile ntawm cov hlau mos hlau ua tau nyob nruab nrab ntawm 440 thiab 785 MPa. Cov kev txwv tshwj xeeb yog txiav txim siab los ntawm qib steel thiab txoj kab uas hla ntawm cov hlau hlau. Ntu ntu ntawm qhov hluav taws xob hlau yog puag ncig, square thiab hexagonal. Qhov chaw hauv xeev ntawm cov hlau tsis xeb tau muab faib rau cov ntawv txias txias thiab nyiaj ci xim. Cov nyiaj ci xim hlau xim hlau yuav tsum muaj qhov siab dua qhov tseeb thiab cov khoom zoo dua qub, du thiab ci ntsa iab, thiab tsis muaj qhov teeb meem saum npoo uas siv rau kev siv. Qhov txoj kab uas hla ntawm cov hlau xa tuaj hauv lub coil xeev feem ntau qis dua 1 hli lossis 1mrr-.
