Nyob rau hauv cov nqe lus ntawm lawv cov tshuaj muaj pes tsawg leeg, tooj liab rods yog ib tug kuj ntshiab cov ntaub ntawv, raws li lawv feem ntau yog tsim los ntawm ntau tshaj 99% tooj liab. Ntxiv nrog rau tooj liab, lawv yuav muaj me me ntawm lwm cov hlau, xws li tin, npib tsib xee, zinc thiab txhuas, uas tau ntxiv los txhim kho qee yam khoom. Piv txwv li, tin yog ntxiv rau cov pas nrig tooj liab txhawm rau txhim kho lawv cov kev tiv thaiv corrosion, thaum npib tsib xee siv los txhim kho lawv cov khoom siv dag zog.
Lub cev muaj zog ntawm cov pas nrig tooj liab yog qhov tshwj xeeb, ua rau lawv yog cov khoom siv zoo tagnrho rau ntau yam kev siv hauv kev lag luam. Cov hluav taws xob thiab thermal conductivity ntawm tooj liab yog tshwj xeeb yog siab, ua rau nws yog ib qho zoo heev conductor ntawm tshav kub thiab hluav taws xob. Qhov no ua rau nws muaj txiaj ntsig zoo rau cov ntawv thov xws li hluav taws xob cables, cov kav dej kub, thiab cov tshuab tub yees.
Ntxiv nrog rau lawv cov conductivity, tooj liab rods muaj siab corrosion kuj, ua rau lawv zoo tagnrho rau siv nyob rau hauv ntub los yog corrosive ib puag ncig. Lawv kuj yog malleable thiab ductile, tso cai rau lawv kom deformed thiab stretched yam tsis muaj kev tawg, ua rau lawv muaj txiaj ntsig zoo rau kev siv hauv kev tsim khoom.
Lwm qhov tseem ceeb ntawm lub cev ntawm cov pas nrig tooj liab suav nrog lawv cov ntsiab lus siab melting thiab zoo ua haujlwm rau qaug zog thiab hnav. Lub melting point ntawm tooj liab yog kwv yees li 1083 degrees, ua rau nws muaj txiaj ntsig zoo rau cov ntawv thov uas muaj qhov kub thiab txias, xws li hauv kev tsim cov khoom hauv kev lag luam aerospace. Nws qhov qaug zog zoo thiab hnav tsis kam txhais tau hais tias cov pas nrig tooj liab tuaj yeem tiv taus cov khoom hnyav dua thiab tswj lawv cov duab thiab cov qauv.
Hauv kev xaus, cov pas nrig tooj liab yog cov khoom tshwj xeeb hauv kev lag luam vim lawv cov hluav taws xob zoo heev thiab thermal conductivity, corrosion kuj, malleability thiab lwm yam tseem ceeb ntawm lub cev. Nws cov tshuaj muaj pes tsawg leeg, uas feem ntau yog ntau tshaj 99% tooj liab, nrog rau me me ntawm lwm yam hlau, yog kho raws li daim ntawv thov uas nws yuav siv. Cov khoom no ua rau cov pas nrig tooj liab tseem ceeb rau ntau yam kev siv, los ntawm kev tsim khoom siv hluav taws xob mus rau aerospace.
